I prefer the company of animals more than the company of humans. Certainly, a wild animal is cruel. But to be merciless is the privilege of civilized humans.

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.

Men are strong so long as they represent a strong idea they become powerless when they oppose it.

It might be said of psychoanalysis that if you give it your little finger it will soon have your whole hand.

Every normal person, in fact, is only normal on the average. His ego approximates to that of the psychotic in some part or other and to a greater or lesser extent.

dream is the dreamer's own psychical act.

The act of birth is the first experience of anxiety, and thus the source and prototype of the affect of anxiety.