The Seducer's Diary Soren Kierkegaard

19th-century reception

In September 1850, the Western Literary Messenger wrote: "While Martensen with his wealth of genius casts from his central position light upon every sphere of existence, upon all the phenomena of life, Søren Kierkegaard stands like another Simon Stylites, upon his solitary column, with his eye unchangeably fixed upon one point."[185] In 1855, the Danish National Church published his obituary. Kierkegaard did have an impact there judging from the following quote from their article: "The fatal fruits which Dr. Kierkegaard show to arise from the union of Church and State, have strengthened the scruples of many of the believing laity, who now feel that they can remain no longer in the Church, because thereby they are in communion with unbelievers, for there is no ecclesiastical discipline."[185][186]

Changes did occur in the administration of the Church and these changes were linked to Kierkegaard's writings. The Church noted that dissent was "something foreign to the national mind". On 5 April 1855 the Church enacted new policies: "every member of a congregation is free to attend the ministry of any clergyman, and is not, as formerly, bound to the one whose parishioner he is". In March 1857, compulsory infant baptism was abolished. Debates sprang up over the King's position as the head of the Church and over whether to adopt a constitution. Grundtvig objected to having any written rules. Immediately following this announcement the "agitation occasioned by Kierkegaard" was mentioned. Kierkegaard was accused of Weigelianism and Darbyism, but the article continued to say, "One great truth has been made prominent, viz (namely): That there exists a worldly-minded clergy; that many things in the Church are rotten; that all need daily repentance; that one must never be contented with the existing state of either the Church or her pastors."[185][187]

Hans Martensen was the subject of a Danish article, Dr. S. Kierkegaard against Dr. H. Martensen By Hans Peter Kofoed-Hansen (1813–1893) that was published in 1856[188] (untranslated) and Martensen mentioned him extensively in Christian Ethics, published in 1871.[189] "Kierkegaard's assertion is therefore perfectly justifiable, that with the category of "the individual" the cause of Christianity must stand and fall; that, without this category, Pantheism had conquered unconditionally. From this, at a glance, it may be seen that Kierkegaard ought to have made common cause with those philosophic and theological writers who specially desired to promote the principle of Personality as opposed to Pantheism. This is, however, far from the case. For those views which upheld the category of existence and personality, in opposition to this abstract idealism, did not do this in the sense of an either—or, but in that of a both—and. They strove to establish the unity of existence and idea, which may be specially seen from the fact that they desired system and totality. Martensen accused Kierkegaard and Alexandre Vinet of not giving society its due. He said both of them put the individual above society, and in so doing, above the Church."[185][190] Another early critic was Magnús Eiríksson who criticized Martensen and wanted Kierkegaard as his ally in his fight against speculative theology.

"August Strindberg was influenced by the Danish individualistic philosopher Kierkegaard while a student at Uppsala University (1867–1870) and mentioned him in his book Growth of a Soul as well as Zones of the Spirit (1913).[191][192] Edwin Bjorkman credited Kierkegaard as well as Henry Thomas Buckle and Eduard von Hartmann with shaping Strindberg's artistic form until he was strong enough to stand wholly on his own feet."[193] The dramatist Henrik Ibsen is said to have become interested in Kierkegaard as well as the Norwegian national writer and poet Bjørnstjerne Bjørnson (1832–1910) who named one of his characters Søren Pedersen in his 1890 book In God's Way. Kierkegaard's father's name was Michael Pedersen Kierkegaard.[194][195]

Several of Kierkegaard's works were translated into German from 1861 onward, including excerpts from Practice in Christianity (1872), from Fear and Trembling[196] and Concluding Unscientific Postscript (1874), Four Upbuilding Discourses and Christian Discourses (1875), and The Lillis of the Field and the Birds of the Air (1876) according to Kierkegaard's International Reception: Northern and Western Europe: Toma I, by John Stewart, see p. 388ff'[197] The Sickness Unto Death, 1881[198] Twelve speeches by Søren Kierkegaard, by Julius Fricke, 1886[199] Stages on Life's Way, 1886 (Bärthold).[200]

Otto Pfleiderer, in The Philosophy of Religion: On the Basis of Its History (1887), claimed that Kierkegaard presented an anti-rational view of Christianity. He went on to assert that the ethical side of a human being has to disappear completely in his one-sided view of faith as the highest good. He wrote, "Kierkegaard can only find true Christianity in entire renunciation of the world, in the following of Christ in lowliness and suffering especially when met by hatred and persecution on the part of the world. Hence his passionate polemic against ecclesiastical Christianity, which he says has fallen away from Christ by coming to a peaceful understanding with the world and conforming itself to the world's life. True Christianity, on the contrary, is constant polemical pathos, a battle against reason, nature, and the world; its commandment is enmity with the world; its way of life is the death of the naturally human."[185][201]

An article from an 1889 dictionary of religion revealed a good idea of how Kierkegaard was regarded at that time, stating: "Having never left his native city more than a few days at a time, excepting once, when he went to Germany to study Schelling's philosophy. He was the most original thinker and theological philosopher the North ever produced. His fame has been steadily growing since his death, and he bids fair to become the leading religio-philosophical light of Germany. Not only his theological but also his aesthetic works have of late become the subject of universal study in Europe."[185][202]

Early-20th-century reception

The first academic to draw attention to Kierkegaard was fellow Dane Georg Brandes, who published in German as well as Danish. Brandes gave the first formal lectures on Kierkegaard in Copenhagen and helped bring him to the attention of the European intellectual community.[203] Brandes published the first book on Kierkegaard's philosophy and life, Søren Kierkegaard, ein literarisches Charakterbild. Autorisirte deutsche Ausg (1879)[204] which Adolf Hult said was a "misconstruction" of Kierkegaard's work and "falls far short of the truth".[205] Brandes compared him to Hegel and Tycho Brahe in Reminiscences of my Childhood and Youth[206] (1906). Brandes also discussed the Corsair Affair in the same book.[207] Brandes opposed Kierkegaard's ideas in the 1911 edition of the Britannica.[185][208][209] Brandes compared Kierkegaard to Nietzsche as well.[210] He also mentioned Kierkegaard extensively in volume 2 of his 6 volume work, Main Currents in Nineteenth Century Literature (1872 in German and Danish, 1906 English).[185][211][212]

There are two types of the artistic soul. There is the one which needs many varying experiences and constantly changing models, and which instantly gives a poetic form to every fresh incident. There is the other which requires amazingly few outside elements to fertilise it, and for which a single life circumstance, inscribed with sufficient force, can furnish a whole wealth of ever-changing thought and modes of expression. Søren Kierkegaard among writers, and Max Klinger among painters, are both great examples of the latter type. To which did Shakespeare belong? William Shakespeare; a critical study, by George Brandes. 1898 p. 195

Swedish author Waldemar Rudin published Sören Kierkegaards person och författarskap – ett försök in 1880.[213] During the 1890s, Japanese philosophers began disseminating the works of Kierkegaard.[214] Tetsuro Watsuji was one of the first philosophers outside of Scandinavia to write an introduction on his philosophy, in 1915.

Harald Høffding wrote an article about him in A brief history of modern philosophy (1900).[185] Høffding mentioned Kierkegaard in Philosophy of Religion 1906, and the American Journal of Theology[215] (1908) printed an article about Hoffding's Philosophy of Religion. Then Høffding repented of his previous convictions in The problems of philosophy (1913).[185] Høffding was also a friend of the American philosopher William James, and although James had not read Kierkegaard's works, as they were not yet translated into English, he attended the lectures about Kierkegaard by Høffding and agreed with much of those lectures. James' favorite quote from Kierkegaard came from Høffding: "We live forwards but we understand backwards". Kierkegaard wrote of moving forward past the irresolute good intention:

The yes of the promise is sleep-inducing, but the no, spoken and therefore audible to oneself, is awakening, and repentance is usually not far away. The one who says, "I will, sir," is at the same moment pleased with himself; the one who says no becomes almost afraid of himself. But this difference if very significant in the first moment and very decisive in the next moment; yet if the first moment is the judgment of the momentary, the second moment is the judgment of eternity. This is precisely why the world is so inclined to promises, inasmuch as the world is the momentary, and at the moment a promise looks very good. This is why eternity is suspicious of promises, just as it is suspicious of everything momentary. And so it is also with the one who, rich in good intentions and quick to promise, moves backward further and further away from the good. By means of the intention and the promise, he is facing in the direction of the good, is turned toward the good but is moving backward further and further away from it. With every renewed intention and promise it looks as if he took a step forward, and yet he is not merely standing still, but he is actually taking a step backward. The intention taken in vain, the unfulfilled promise, leaves despondency, dejection, that in turn perhaps soon blazes up into an even more vehement intention, which leaves only greater listlessness. Just as the alcoholic continually needs a stronger and stronger stimulant—in order to become intoxicated, likewise the one who has become addicted to promises and good intentions continually needs more and more stimulation—in order to go backward. Søren Kierkegaard, Works of Love, Hong pp. 93–94 (1850)

One thing James did have in common with Kierkegaard was respect for the single individual, and their respective comments may be compared in direct sequence as follows: "A crowd is indeed made up of single individuals; it must therefore be in everyone's power to become what he is, a single individual; no one is prevented from being a single individual, no one, unless he prevents himself by becoming many. To become a crowd, to gather a crowd around oneself, is on the contrary to distinguish life from life; even the most well-meaning one who talks about that, can easily offend a single individual."[216] In his book A Pluralistic Universe, James stated that, "Individuality outruns all classification, yet we insist on classifying every one we meet under some general label. As these heads usually suggest prejudicial associations to some hearer or other, the life of philosophy largely consists of resentments at the classing, and complaints of being misunderstood. But there are signs of clearing up for which both Oxford and Harvard are partly to be thanked."[217]

The Encyclopaedia of religion and ethics had an article about Kierkegaard in 1908. The article began:

The life of Søren Kierkegaard has but few points of contact with the external world; but there were, in particular, three occurrences—a broken engagement, an attack by a comic paper, and the use of a word by H.L. Martensen—which must be referred to as having wrought with extraordinary effect upon his peculiarly sensitive and high-strung nature. The intensity of his inner life, again—which finds expression in his published works, and even more directly in his notebooks and diaries (also published)—cannot be properly understood without some reference to his father.[185][218]

Friedrich von Hügel wrote about Kierkegaard in his 1913 book, Eternal life: a study of its implications and applications, where he said: "Kierkegaard, the deep, melancholy, strenuous, utterly uncompromising Danish religionist, is a spiritual brother of the great Frenchman, Blaise Pascal, and of the striking English Tractarian, Hurrell Froude, who died young and still full of crudity, yet left an abiding mark upon all who knew him well."[219][220]

John George Robertson[221] wrote an article called Søren Kierkegaard in 1914: "Notwithstanding the fact that during the last quarter of a century, we have devoted considerable attention to the literatures of the North, the thinker and man of letters whose name stands at the head of the present article is but little known to the English-speaking world. The Norwegians, Ibsen and Bjørnson, have exerted a very real power on our intellectual life, and for Bjørnson we have cherished even a kind of affection. But Kierkegaard, the writer who holds the indispensable key to the intellectual life of Scandinavia, to whom Denmark in particular looks up as her most original man of genius in the nineteenth century, we have wholly overlooked."[222] Robertson wrote previously in Cosmopolis (1898) about Kierkegaard and Nietzsche.[223] Theodor Haecker wrote an essay titled, Kierkegaard and the Philosophy of Inwardness in 1913 and David F. Swenson wrote a biography of Søren Kierkegaard in 1920.[185] Lee M. Hollander translated parts of Either/Or, Fear and Trembling, Stages on Life's Way, and Preparations for the Christian Life (Practice in Christianity) into English in 1923,[224] with little impact. Swenson wrote about Kierkegaard's idea of "armed neutrality"[225] in 1918 and a lengthy article about Søren Kierkegaard in 1920.[226][227] Swenson stated: "It would be interesting to speculate upon the reputation that Kierkegaard might have attained, and the extent of the influence he might have exerted, if he had written in one of the major European languages, instead of in the tongue of one of the smallest countries in the world."[228]

Austrian psychologist Wilhelm Stekel (1868–1940) referred to Kierkegaard as the "fanatical follower of Don Juan, himself the philosopher of Don Juanism" in his book Disguises of Love.[229] German psychiatrist and philosopher Karl Jaspers (1883–1969) stated he had been reading Kierkegaard since 1914 and compared Kierkegaard's writings with Hegel's Phenomenology of Mind and the writings of Friedrich Nietzsche. Jaspers saw Kierkegaard as a champion of Christianity and Nietzsche as a champion for atheism.[230] Later, in 1935, Karl Jaspers emphasized Kierkegaard's (and Nietzsche's) continuing importance for modern philosophy[231]

German and English translators of Kierkegaard's works

Albert Barthod began translating Kierkegaard's works into German as early as 1873.[232] Hermann Gottsche published Kierkegaard's Journals in 1905. It had taken academics 50 years to arrange his journals.[233] Kierkegaard's main works were translated into German by Christoph Schrempf from 1909 onwards.[234] Emmanuel Hirsch released a German edition of Kierkegaard's collected works from 1950 onwards.[234] Both Harald Hoffding's and Schrempf's books about Kierkegaard were reviewed in 1892.[235][236]

In the 1930s, the first academic English translations,[237] by Alexander Dru, David F. Swenson, Douglas V. Steere, and Walter Lowrie appeared, under the editorial efforts of Oxford University Press editor Charles Williams,[238] one of the members of the Inklings.[239][240] Thomas Henry Croxall, another early translator, Lowrie, and Dru all hoped that people would not just read about Kierkegaard but would actually read his works.[241] Dru published an English translation of Kierkegaard's Journals in 1958;[242] Alastair Hannay translated some of Kierkegaard's works.[68] From the 1960s to the 1990s, Howard V. Hong and Edna H. Hong translated his works more than once.[243][244] The first volume of their first version of the Journals and Papers (Indiana, 1967–1978) won the 1968 U.S. National Book Award in category Translation.[243][245] They both dedicated their lives to the study of Søren Kierkegaard and his works, which are maintained at the Howard V. and Edna H. Hong Kierkegaard Library.[246] Jon Stewart from the University of Copenhagen has written extensively about Søren Kierkegaard.

Kierkegaard's influence on Karl Barth's early theology

Kierkegaard's influence on Karl Barth's early theology is evident in The Epistle to the Romans 1918, 1921, 1933.

"If I have a system it is limited to a recognition of what Kierkegaard called the 'infinite qualitative distinction' and to my regarding this as possessing negative as well as positive significance: 'God is in heaven. And thou art on earth.' The relation between such a God and such a man, and the relation between such a man and such a God, is for me the theme of the Bible and the essence of philosophy. Philosophers name this KRISIS of human perception—the Prime Cause: the Bible holds at the same cross-roads-the figure of Jesus Christ. When I am faced by such a document as the Epistle of Paul to the Romans, I embark on its interpretation on the assumption that he is confronted with the same unmistakable and unmeasurable significance of that relation as I myself am confronted with, and that it is this situation which moulds his thought and its expression". Karl Barth, The Epistle to the Romans 1919 Preface (originally published in German)

Barth read at least three volumes of Kierkegaard's works: Practice in Christianity, The Moment, and an Anthology from his journals and diaries. Almost all key terms from Kierkegaard which had an important role in The Epistle to the Romans can be found in Practice in Christianity. The concept of the indirect communication, the paradox, and the moment of Practice in Christianity, in particular, confirmed and sharpened Barth's ideas on contemporary Christianity and the Christian life.

It was in his study of Paul that he found his first peace of mind. He was fascinated by the revelation of the power of the Holy Spirit when it once touched a man; at the completeness with which it overwhelms and keeps its chosen ones loyal. He conceived of Paul as one upon whom God had laid His hand' Barth writes: "The man Paul evidently sees and hears something which is above everything, which is absolutely beyond the range of my observation and measure of my thought." Following this observation Barth too became a "listener" and in that moment was born the "Theology of Crisis". Besides affecting Barth deeply, the philosophy of Kierkegaard has found voice in the works of Ibsen, Unamuno, and Heidegger, and its sphere of influence seems to be growing in ever widening circles. The principle contribution of Kierkegaard to Barth is the dualism of time and eternity which Kierkegaard phrases: "The infinite qualitative difference between time and eternity."[247]

Wilhelm Pauck wrote in 1931 (Karl Barth Prophet of a New Christianity) that Kierkegaard's use of the Latin phrase Finitum Non Capax Infiniti (the finite does not (or cannot) comprehend the infinite) summed up Barth's system.[248] David G. Kingman and Adolph Keller each discussed Barth's relationship to Kierkegaard in their books, The Religious Educational Values in Karl Barth's Teachings (1934) and Karl Barth and Christian Unity (1933). Keller notes the splits that happen when a new teaching is introduced and some assume a higher knowledge from a higher source than others.

Students of Kierkegaard became a "group of dissatisfied, excited radicals" when under Barthianism. Eduard Geismar (1871–1939), who gave Lectures on Kierkegaard in March 1936, was not radical enough for them. Barthianism was opposed to the objective treatment of religious questions and to the sovereignty of man in the existential meeting with the transcendent God. But just as students of Hegel broke off into Right and Left, so did the German followers of Barth.

The inward distress, the tension and the preparation of Kierkegaard made them receptive to the new. A magazine entitled the Tidenverv (The Turn of the Times), has been their journal since 1926. Especially the Student Christian Movement became the port of invasion for the new thought. But this invasion has been split completely into two camps which vehemently attack each other. Indictment was launched against the old theology. The quiet work of the church was scorned as secularization of the message or as emotional smugness, which had found a place in Home Missions despite all its call to repentance.[249]

Barth endorses the main theme from Kierkegaard but also reorganizes the scheme and transforms the details. He expands the theory of indirect communication to the field of Christian ethics; he applies the concept of unrecognizability to the Christian life. He coins the concept of the "paradox of faith" since the form of faith entails a contradictory encounter of God and human beings. He also portrayed the contemporaneity of the moment when in crisis a human being desperately perceives the contemporaneity of Christ. In regard to the concept of indirect communication, the paradox, and the moment, the Kierkegaard of the early Barth is a productive catalyst.[250]

Later-20th-century reception

William Hubben compared Kierkegaard to Dostoevsky in his 1952 book Four Prophets of Our Destiny, later titled Dostoevsky, Kierkegaard, Nietzsche, and Kafka.

Logic and human reasoning are inadequate to comprehend truth, and in this emphasis Dostoevsky speaks entirely the language of Kierkegaard, of whom he had never heard. Christianity is a way of life, an existential condition. Again, like Kierkegaard, who affirmed that suffering is the climate in which man's soul begins to breathe. Dostoevsky stresses the function of suffering as part of God's revelation of truth to man. Dostoevsky, Kierkegaard, Nietzsche, and Kafka by William Hubben 1952 McMillan p. 83

In 1955 Morton White wrote about the word "exists" and Kierkegaard's idea of God's is-ness.

The word "exists" is one of the most pivotal and controversial in philosophy. Some philosophers think of it as having one meaning: the sense in which we say that this book exists, that God does or does not exist, that there exist odd numbers between 8 and 20, that a characteristic like redness exists as well as things that are red, that the American government exists as well as the physical building in which the government is housed, that minds exist as well as bodies. And when the word "exists" is construed in this unambiguous way, many famous disputes in the history of philosophy and theology appear to be quite straightforward. Theists affirm that God exists while atheists deny the very same statement; materialists say that matter exists while some idealists think that it is illusory; nominalists, as they are called, deny the existence of characteristics like redness while platonic realists affirm it; some kinds of behaviorists deny that there are minds inside bodies. There is, however, a tendency among some philosophers, to insist that the word "exists" is ambiguous and therefore that some of these disputes are not disputes at all but merely the results of mutual misunderstanding, of a failure to see that certain things are said to exist in one sense while others exist in another. One of the outstanding efforts of this kind in the twentieth century occurs in the early writings of realists who maintained that only concrete things in space and time exist, while abstract characteristics of things or relations between them should be said to subsist. This is sometimes illustrated by pointing out that while Chicago and St. Louis both exist at definite places, the relation more populous than which holds between them exists neither in Chicago nor in St. Louis nor in the area between them, but is nevertheless something about which we can speak, something that is usually assigned to a timeless and spaceless realm like that of which Plato spoke. On this view, however, human minds or personalities are also said to exist in spite of being non-material. In short, the great divide is between abstract subsistents and concrete existents, but both human personalities and physical objects are existents and do not share in the spacelessness and timelessness of platonic ideas.

So far as one can see, Kierkegaard too distinguishes different senses of "exists", except that he appears to need at least three distinct senses for which he should supply three distinct words. First of all he needs one for statements about God, and so he says that God is. Secondly, and by contrast, persons or personalities are said to exist. It would appear then that he needs some third term for physical objects, which on his view are very different from God and persons, but since existentialists don't seem to be very interested in physical objects or "mere" things, they appear to get along with two. The great problem for Kierkegaard is to relate God's is-ness, if I may use that term for the moment, to human existence, and this he tries to solve by appealing to the Incarnation. Christ's person is the existent outgrowth of God who is. By what is admittedly a mysterious process the abstract God enters a concrete existent. We must accept this on faith and faith alone, for clearly it cannot be like the process whereby one existent is related to another; it involves a passage from one realm to another which is not accessible to the human mind, Christians who lacked this faith and who failed to live by it were attacked by Kierkegaard; this was the theological root of his violent criticism of the Established Church of Denmark. It is one source of his powerful influence on contemporary theology.

• 20th Century Philosophers, The Age of Analysis, selected with introduction and commentary by Morton White 1955 pp. 118–121 Houghton Mifflin Co

John Daniel Wild noted as early as 1959 that Kierkegaard's works had been "translated into almost every important living language including Chinese, Japanese, and Korean, and it is now fair to say that his ideas are almost as widely known and as influential in the world as those of his great opponent Hegel, still the most potent of world philosophers."[251]

Mortimer J. Adler wrote the following about Kierkegaard in 1962:

For Kierkegaard, man is essentially an individual, not a member of a species or race; and ethical and religious truth is known through individual existence and decision—through subjectivity, not objectivity. Systems of thought and a dialectic such as Hegel's are matters merely of thought, which cannot comprise individual existence and decision. Such systems leave out, said Kierkegaard, the unique and essential "spermatic point, the individual, ethically and religiously conceived, and existentially accentuated". Similarly in the works of the American author Henry David Thoreau, writing at the same time as Kierkegaard, there is an emphasis on the solitary individual as the bearer of ethical responsibility, who, when he is right, carries the preponderant ethical weight against the state, government, and a united public opinion, when they are wrong. The solitary individual with right on his side is always "a majority of one". Ethics, the study of moral values, by Mortimer J. Adler and Seymour Cain. Pref. by William Ernest Hocking. 1962 p. 252

In 1964 Life Magazine traced the history of existentialism from Heraclitus (500BC) and Parmenides over the argument over The Unchanging One as the real and the state of flux as the real. From there to the Old Testament Psalms and then to Jesus and later from Jacob Boehme (1575–1624) to Rene Descartes (1596–1650) and Blaise Pascal (1623–1662) and then on to Nietzsche and Paul Tillich. Dostoevsky and Camus are attempts to rewrite Descartes according to their own lights and Descartes is the forefather of Sartre through the fact that they both used a "literary style". The article goes on to say,

But the orthodox, textbook precursor of modern existentialism was the Danish theologian Søren Kierkegaard (1813–1855), a lonely, hunchbacked writer who denounced the established church and rejected much of the then-popular German idealism—in which thought and ideas, rather than things perceived through the senses, were held to constitute reality. He built a philosophy based in part on the idea of permanent cleavage between faith and reason. This was an existentialism which still had room for a God whom Sartre later expelled, but which started the great pendulum-swing toward the modern concepts of the absurd. Kierkegaard spent his life thinking existentially and converting remarkably few to his ideas. But when it comes to the absurdity of existence, war is a great convincer; and it was at the end of World War I that two German philosophers, Karl Jaspers and Martin Heidegger, took up Kierkegaard's ideas, elaborated and systematized them. By the 1930s Kierkegaard's thinking made new impact on French intellectuals who, like Sartre, were nauseated by the static pre-Munich hypocrisy of the European middle class. After World War II, with the human condition more precarious than ever, with humanity facing the mushroom-shaped ultimate absurdity, existentialism and our time came together in Jean-Paul Sartre.

• "Existentialism", Life, November 6, 1964, Volume 57, No. 19 ISSN 0024-3019 Published by Time Inc. pp. 86, 102–103

Kierkegaard's comparatively early and manifold philosophical and theological reception in Germany was one of the decisive factors of expanding his works' influence and readership throughout the world.[252][253] Important for the first phase of his reception in Germany was the establishment of the journal Zwischen den Zeiten (Between the Ages) in 1922 by a heterogeneous circle of Protestant theologians: Karl Barth, Emil Brunner, Rudolf Bultmann and Friedrich Gogarten.[254] Their thought would soon be referred to as dialectical theology.[254] At roughly the same time, Kierkegaard was discovered by several proponents of the Jewish-Christian philosophy of dialogue in Germany, namely by Martin Buber, Ferdinand Ebner, and Franz Rosenzweig.[255] In addition to the philosophy of dialogue, existential philosophy has its point of origin in Kierkegaard and his concept of individuality.[256] Martin Heidegger sparsely refers to Kierkegaard in Being and Time (1927),[257] obscuring how much he owes to him.[258][259][260] Walter Kaufmann discussed Sartre, Jaspers, and Heidegger in relation to Kierkegaard, and Kierkegaard in relation to the crisis of religion in the 1960s.[261] Later, Kierkegaard's Fear and Trembling (Series Two) and The Sickness Unto Death (Series Three) were included in the Penguin Great Ideas Series (Two and Three).[262]