It is courage, courage, courage, that raises the blood of life to crimson splendor.

A man thinking or working is always alone, let him be where he will.

The worst sin... is... to be indifferent.

The degree of tolerance attainable at any moment depends on the strain under which society is maintaining its cohesion.

The test of good education is seeing how it behaves in a fight.

We are compelled by the theory of God's already achieved perfection to make Him a devil as well as a god, because of the existenceof evil. The god of love, if omnipotent and omniscient, must be the god of cancer and epilepsy as well.... Whoever admits that anything living is evil must either believe that God is malignantly capable of creating evil, or else believe that God has made many mistakes in His attempts to make a perfect being.

Give a man health and a course to steer, and he'll never stop to trouble about whether he's happy or not.