It is sad but unfortunately true that man learns nothing from history.

The little world of childhood with its familiar surroundings is a model of the greater world. The more intensively the family has stamped its character upon the child, the more it will tend to feel and see its earlier miniature world again in the bigger world of adult life. Naturally this is not a conscious, intellectual process.

What is not brought to consciousness, comes to us as fate.

So they speak soothingly about progress and the greatest possible happiness, forgetting that happiness is itself poisoned if the measure of suffering has not been fulfilled.

Psychoanalysis cannot be considered a method of education if by education we mean the topiary art of clipping a tree into a beautiful artificial shape. But those who have a higher conception of education will prize most the method of cultivating a tree so that it fulfils to perfection its own natural conditions of growth.

Life really does begin at forty. Up until then, you are just doing research.

It is a fact that cannot be denied: the wickedness of others becomes our own wickedness because it kindles something evil in our own hearts.