Darwin, Marx, and Freud meet. They may have understood other things, but the human soul, and in particular the soul of Culture-man, they did not understand. Systems like theirs are only historical curiosities to the 20th century, unless they happen to claim to be appropriate descriptions of Reality. Anyone who believes in these antiquated fantasies stamps himself as ludicrous, posthumous, ineffective, and superfluous. No leading men of the coming decades will be Darwinians, Marxians or Freudians.