Civilizations can only be understood by those who are civilized.

[In many circumstances,] the most important thing about a proposition is not that it be true, but that it be interesting.

The 'silly question' is the first intimation of some totally novel development.

Ideas won't keep. Something must be done about them.

In a sense, knowledge shrinks as wisdom grows: for details are swallowed up in principles.

Seek simplicity, then distrust.

There are no whole truths: All truths are half-truths.