Like most philosophers, Kant worked to shore up the conventional beliefs of his time. Schopenhauer did the opposite. Accepting the arguments of Hume and Kant that the world is unknowable, he concluded that both the world and the individual subject that imagines it knows it are maya, dreamlike constructions with no basis in reality. ... Schopenhauer accepted the sceptical side of Kant's philosophy and turned it against him. Kant demonstrated that we are trapped in the world of phenomena and cannot know things in themselves. Schopenhauer went one step further and observed that we ourselves belong in the world of appearances. Unlike Kant, Schopenhauer was ready to follow his thoughts wherever they led. Kant argued that unless we accept that we are autonomous, freely choosing selves we cannot make sense of our moral experience. Schopenhauer responded that our actual experience is not of freely choosing the way we live but of being driven along by our bodily needs - by fear, hunger and, above all, sex.
John Gray (philosopher)