You must learn to understand the secret of gratitude. It is more than just so-called virtue. It is revealed to you as a mysterious law of existence. In obedience to it we have to fulfill our destiny.

Very little of the great cruelty shown by men can really be attributed to cruel instinct. Most of it comes from thoughtlessness or inherited habit. The roots of cruelty, therefore, are not so much strong as widespread. But the time must come when inhumanity protected by custom and thoughtlessness will succumb before humanity championed by thought. Let us work that this time may come.

The true worth of a man is not to be found in man himself, but in the colours and textures that come alive in others.

It is not always granted to the sower to see the harvest.

The great secret of success is to go through life as a man who never gets used to failing.

The first step in the evolution of ethics is a sense of solidarity with other human beings.

The man who has become a thinking being feels a compulsion to give every will-to-live the same reverence for life that he gives to his own. He experiences that other life in his own.