Locke wrote Some Thoughts Concerning Education in response to his friend Edward Clarke's query on how to educate his son, so the text's "principal aim", as Locke states at the beginning, "is how a young gentleman should be brought up from his infancy." This education "will not so perfectly suit the education of daughters; though where the difference of sex requires different treatment, it will be no hard matter to distinguish" (Locke's emphasis).[25] This passage suggests that, for Locke, education was fundamentally the same for men and women—there were only small, obvious differences for women. This interpretation is supported by a letter he wrote to Mary Clarke in 1685 stating that "since therefore I acknowledge no difference of sex in your mind relating ... to truth, virtue and obedience, I think well to have no thing altered in it from what is [writ for the son]."[52] Martin Simons states that Locke "suggested, both by implication and explicitly, that a boy's education should be along the lines already followed by some girls of the intelligent genteel classes."[53] Rather than sending boys to schools which would ignore their individual needs and teach them little of value, Locke argues that they should be taught at home as girls already were and "should learn useful and necessary crafts of the house and estate."[54] Like his contemporary Mary Astell, Locke believed that women could and should be taught to be rational and virtuous.[55]
But Locke does recommend several minor "restrictions" relating to the treatment of the female body. The most significant is his reining in of female physical activity for the sake of physical appearance: "But since in your girls care is to be taken too of their beauty as much as health will permit, this in them must have some restriction ... 'tis fit their tender skins should be fenced against the busy sunbeams, especially when they are very hot and piercing."[56] Although Locke's statement indicates that he places a greater value on female than male beauty, the fact that these opinions were never published allowed contemporary readers to draw their own conclusions regarding the "different treatments" required for girls and boys, if any.[57] Moreover, compared to other pedagogical theories, such as those in the best-selling conduct book The Whole Duty of a Woman (1696), the female companion to The Whole Duty of Man (1657), and Rousseau's Emile (1762), which both proposed entirely separate educational programs for women, Locke's Some Thoughts appears either more egalitarian, or more unbodied.
