To retire to the monastery, or the woods, or the sea, is to escape from the sharp suggestions that spur on ambition.

Form the habit of making decisions when your spirit is fresh...to let dark moods lead is like choosing cowards to command armies.

To have no heroes is to have no aspiration, to live on the momentum of the past, to be thrown back upon routine, sensuality, and the narrow self.

No matter what a man does, he is not fully sane or human unless there is a spirit of freedom in him, a soul unconfined by purpose and larger than the practicable world.

One should never criticize his own work except in a fresh and hopeful mood. The self-criticism of a tired mind is suicide.

The actual God of many Americans... is simply the current of American life.

Could anything be more indicative of a slight but general insanity than the aspect of the crowd on the streets of Chicago?