If you want to live a happy life, tie it to a goal, not to people or objects.

Any fool can know. The point is to understand.

Do not worry about your difficulties in Mathematics. I can assure you mine are still greater.

When men are engaged in war and conquest, the tools of science become as dangerous as a razor in the hands of a child of three. We must not condemn man because his inventiveness and patient conquest of the forces of nature are being exploited for false and destructive purposes. Rather, we should remember that the fate of mankind hinges entirely upon man’s moral development.

Our task is to widen our circle of compassion to include all living beings and all of nature

During the youthful period of mankind's spiritual evolution human fantasy created gods in man's own image, who, by the operations of their will were supposed to determine, or at any rate to influence, the phenomenal world. Man sought to alter the disposition of these gods in his own favour by means of magic and prayer.

Only morality in our actions can give beauty and dignity to life.