The two most far-reaching critical theories at the beginning of the latest phase of industrial society were those of Marx and Freud. Marx showed the moving powers and the conflicts in the social-historical process. Freud aimed at the critical uncovering of the inner conflicts. Both worked for the liberation of man, even though Marx's concept was more comprehensive and less time-bound than Freud's.

What is it that distinguishes man from animals? It is not his upright posture. That was present in the apes long before the brain began to develop. Nor is it t…

The kind of relatedness to the world may be noble or trivial, but even being related to the basest kind of pattern is immensely preferable to being alone.

Man is born as a freak of nature, being within nature and yet transcending it. He has to find principles of action and decision-making which replace the princi…

I may illustrate this by two very different examples of human behaviour: that of a man who pushes a child into the water with the intention of drowning it; and…

Doctor Freud not only used cocaine himself, but he also prescribed it to his patients. And then he drew his generalizations. Cocaine is a strong sexual arouser…

I do not in the least underestimate bisexuality. . . I expect it to provide all further enlightenment.