The Ego and His Own

'The Ego and His Own', also translated as 'The Unique and its Property', is a non-fiction book by German philosopher Max Stirner. It presents a post-Hegelian critique of Christianity and traditional morality on one hand; and on the other, humanism, utilitarianism, liberalism, and much of the then-burgeoning socialist movement, advocating instead an amoral (although importantly not inherently immoral or antisocial) egoism. It is considered a major influence on the development of anarchism, existentialism, nihilism, and postmodernism.