The madman is a dreamer awake

Religion is an attempt to get control over the sensory world, in which we are placed, by means of the wish-world which we have developed inside us as a result of biological and psychological necessites.

A strong egoism is a protection against disease, but in the last resort we must begin to love in order that we may not fall ill, and must fall ill if, in consequence of frustration, we cannot love.

A string of reproaches against other people leads one to suspect the existence of a string of self-reproaches with the same content.

Man has, as it were, become a kind of prosthetic God.

My way of working was different years ago. I used to wait until an idea came to me. Now I go half-way to meet it, though I don't know whether I find it any the quicker.

The dream acts as a safety-valve for the over-burdened brain.