The only worthwhile achievements of man are those which are socially useful.

My psychology belongs to everyone.

Every individual acts and suffers in accordance with his peculiar teleology, which has all the inevitability of fate, so long as he does not understand it.

Tears and complaints - the means which I have called water power - can be an extremely useful weapon for disturbing cooperation and reducing other to a condition of slavery.

It is one of the most effective attitudes of the neurotic to measure thumbs down, so to speak, a real person by an ideal, since in doing so he can depreciate him as much as he wishes.

We must never neglect the patient's own use of his symptoms.

The style of life is a unity because it has grown out of the difficulties of early life and out of the striving for a goal.