It is Nietzsche's merit that he was aware that to philosophize is radically problematic in the cultural, historicist dispensation. He recognized the terrible intellectual and moral risks involved. At the center of his every thought was the question “How is it possible to do what I am doing?” He tried to apply to his own thought the teachings of cultural relativism. This practically nobody else does. For example, Freud says that men are motivated by desire for sex and power, but he did not apply those motives to explain his own science or his own scientific activity. But if he can be a true scientist, i.e., motivated by love of the truth, so can other men, and his description of their motives is thus mortally flawed. Or if he is motivated by sex or power, he is not a scientist, and his science is only one means among many possible to attain those ends. This contradiction runs throughout the natural and social sciences. They give an account of things that cannot possibly explain the conduct of their practitioners.