Far more crucial than what we know or do not know is what we do not want to know.

The ignorant are a reservoir of daring. It almost seems that those who have yet to discover the known are particularly equipped for dealing with the unknown. The unlearned have often rushed in where the learned feared to tread, and it is the credulous who are tempted to attempt the impossible. They know not whither they are going, and give chance a chance.

One of the chief differences between an adult and a juvenile is that the adult knows when he is an ass while the juvenile never does.

Men of thought seldom work well together, whereas between men of action there is usually an easy camaraderie.

Self-esteem and self-contempt have specific odors; they can be smelled.

Nothing comes easily. My work smells of sweat.

Actual creativeness is a matter of moments. One has to piece together the minute grains to make a lump. And it is so easy to miss the momentary flashes, it is like sluicing in placer mining. He who lets the flakes float by has nothing to show for his trouble.