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.

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.

All failures are so because they lack social interest.

Death is really a great blessing for humanity, without it there could be no real progress. People who lived for ever would not only hamper and discourage the young, but they would themselves lack sufficient stimulus to be creative.

My psychology belongs to everyone.

There is no such thing as talent. There is pressure.

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