"The replacement of the power of the individual by the power of a community constitutes the decisive step of civilization."

"From the moment of birth, man is destined to suffer."

"The interpretation of dreams is the royal road to a knowledge of the unconscious activities of the mind."

"The creative writer does the same as the child at play; he creates a world of fantasy which he takes very seriously—that is, he invests it with a great deal of affect—though he separates it sharply fr…"

"The path to happiness is through the fulfillment of the pleasure principle."