Read the lines below. How does Victor view his responsibility in the last moment of his life.

In a fit of enthusiastic madness I created a rational creature and was bound towards him to assure, as far as was in my power, his happiness and well-being. This was my duty, but there was another still paramount to that. My duties towards the beings of my own species had greater claims to my attention because they included a greater proportion of happiness or misery. Urged by this view, I refused, and I did right in refusing, to create a companion for the first creature. He showed unparalleled malignity and selfishness in evil; he destroyed my friends; he devoted to destruction beings who possessed exquisite sensations, happiness, and wisdom; nor do I know where this thirst for vengeance may end. Miserable himself that he may render no other wretched, he ought to die. The task of his destruction was mine, but I have failed.