It leads to a realization that man is not a constant, unchanging being: he is one person one day, another person the next. He forgets easily, lives in the moment, seldom exerts will-power, and even when he does, gives up the effort after a short time, or forgets his original aim and turns to something else. No wonder that poets feel such despair when they seem to catch a glimpse of some intenser state of consciousness, and know with absolute certainty that nothing they can do can hold it fast. And this theme, implicit in Sartre, Camus, Hemingway, and even more explicit in writers like T. S. Eliot and Aldous Huxley, leads to a question, 'How can man be stronger? How can he be less of a slave of circumstances?