Some tools of thought are so blunt that they are almost useless; others are so sharp that they are dangerous. But the wise man will have the use of both kinds.

Every move we make in fear of the next war in fact hastens it.

Somebody was saying to Picasso that he ought to make pictures of things the way they are-objective pictures. He mumbled that he wasn't quite sure what that would be. The person who was bullying him produced a photograph of his wife from his wallet and said, "There, you see, that is a picture of how she really is." Picasso looked at it and said, "She is rather small, isn't she? And flat?"

It is impossible, in principle, to explain any pattern by invoking a single quantity.

Money is always transitively valued. More money is supposedly always better than less money.

But epistemology is always and inevitably personal. The point of the probe is always in the heart of the explorer: What is my answer to the question of the nature of knowing?

There are no monotone "values" in biology.