One who understands much displays a greater simplicity of character than one who understands little

To remain young one must change.

The peak of tolerance is most readily achieved by those who are not burdened with convictions.

To understand is to forgive even oneself.

The banalities of a great man pass for wit.

Memory is the thing you forget with.

There are few successful adults who were not first successful children.

A man's home is his wife's castle.

Lovers of air travel find it exhilarating to hang poised between the illusion of immortality and the fact of death.

More and more people care about religious tolerance as fewer and fewer care about religion.

To understand is to forgive, even oneself.

the best existential analysis of the human condition leads directly into the problems of God and faith

I had always been a boy in this place, and many of the trees and rocks and streams had been old men when I knew them. Some had died. All had changed. I knew that. I had changed the most.

Observe, record, tabulate, communicate. Use your five senses. Learn to see, learn to hear, learn to feel, learn to smell, and know that by practice alone you can become expert.

You have no choice but to operate in a world shaped by globalization and the information revolution. There are two options: adapt or die.

Hot things, sharp things, sweet things, cold things All rot the teeth, and make them look like old things.

All inferences from experience... are effects of custom, not of reasoning.

Enjoy all you have while pursuing all you want.

The physicist can never subject an isolated hypothesis to experimental test, but only a whole group of hypotheses.

Brotherhood doesn't come in a package. It is not a commodity to be taken down from the shelf with one hand - it is an accomplishment of soul-searching, prayer and perseverance.

Hell, we spent $200 Billion to get a scared guy who needed a shave out of a fox-hole! And he may even die of prostate cancer before we even get a chance to try him, dammit!