Only a good-for-nothing is not interested in his past.

There is a psychological technique which makes it possible to interpret dreams, and ... if that procedure is employed, every dream reveals itself as a psychical structure which has a meaning and which can be inserted at an assignable point in the mental activities of waking life.

The liberty of the individual is no gift of civilization. It was greatest before there was any civilization.

Most people do not really want freedom, because freedom involves responsibility, and most people are frightened of responsibility.

After all, we did not invent symbolism; it is a universal age-old activity of the human imagination.

I regard myself as one of the most dangerous enemies of religion

I take up the standpoint that the tendency to aggression is an innate, independent, instinctual disposition in man, and I come back now to the statement that it constitutes the most powerful obstacle to culture.