None believes in his own death. In the unconscious everyone is convinced of his own immortality.

Just as a satisfaction of instinct spells happiness for us, so severe suffering is caused us if the external world lets us starve, if it refuses to sate our needs. One may therefore hope to be freed from a part of one's sufferings by influencing the instinctual impulses.

Whatever fosters the growth of civilization works at the same time against war.

In the depths of my heart I can’t help being convinced that my dear fellow-men, with a few exceptions, are worthless.

A piece of creative writing, like a day-dream, is a continuation of, and a substitute for, what was once the play of childhood.

Demons do not exist any more than gods do, being only the products of the psychic activity of man.

Where such men love they have no desire and where they desire they cannot love