It is one of the triumphs of human wit ... to conquer by humility and submissiveness ... to make oneself small in order to appear great ... such ... are often the expedients of the neurotic.

If you wish to educate a child who has gone wrong, then you must, above all, keep your attention fixed on the intersection of two charmed circles.

Play is a child's work and this is not a trivial pursuit.

I am grateful for the idea that has used me.

To all those who walk the path of human cooperation war must appear loathsome and inhuman.

The feeling of inferiority rules the mental life and can be clearly recognized in the sense of incompleteness and unfulfillment, and in the uninterrupted struggle both of individuals and humanity.

Distorted history boasts of bellicose glory... and seduces the souls of boys to seek mystical bliss in bloodshed and in battles.