The basic science is not physics or mathematics but biology -- the study of life. We must learn to think both logically and bio-logically.

If you're never ridden a fast horse at a dead run across a desert valley at dawn, be of good cheer: You've only missed out on one half of life.

Generally speaking, it's a matter of only mild intellectual interest to me whether the earth goes around the sun or the sun goes around the earth. In fact, I don't care a rat's ass either way.

The absurd vanity of metaphysicians who like to imagine that they create the world by thinking about it.

Great art is never perfect; perfect art is never great.

No man likes to be smoked out of his hole in February.

The world is full of burled and gnarly knobs on which you can hang a metaphysical system. If you must.