We are what we are because we have been what we have been.

An intimate friend and a hated enemy have always been indispensable requirements for my emotional life; I have always been able to create them anew, and not infrequently my childish ideal has been so closely approached that friend and enemy coincided in the same person.

When the wayfarer whistles in the dark, he may be disavowing his timidity, but he does not see any the more clearly for doing so.

These patients have turned away from outer reality; it is for this reason that they are more aware than we of inner reality and can reveal to us things which without them would remain impenetrable.

The price we pay for our advance in civilization is a loss of happiness through the heightening of the sense of guilt.

At bottom God is nothing more than an exalted father.

Dreams are often most profound when they seem the most crazy.