And when it rains on your parade, look up rather than down. Without the rain, there would be no rainbow.

To mix science up with philosophy is only to produce a philosophy that has lost all its ideal value and a science that has lost all its practical value. It is for my private physician to tell me whether this or that food will kill me. It is for my private philosopher to tell me whether I ought to be killed.

The thing that cannot be defined is the first thing; the primary fact.

Agnostic is the Greek word, for the Latin word, for ignorant

Just at present you only see the tree by the light of the lamp. I wonder when you would ever see the lamp by the light of the tree.

And my haunting instinct that somehow good was not merely a tool to be used, but a relic to be guarded, like the goods from Crusoe's ship--even that had been the wild whisper of something originally wise, for, according to Christianity, we were indeed the survivors of a wreck, the crew of a golden ship that had gone down before the beginning of the world.

Freethinkers are occasionally thoughtful, though never free.