Only the unknown frightens men. But once a man has faced the unknown, that terror becomes the known.

I am a fox", the fox said.

The seed haunted by the sun never fails to find its way between the stones in the ground. And the pure logician, if no sun draws him forth, remains entangled in his logic.

No truth is proved, no truth achieved, by argument, and the ready-made truths men offer you are mere conveniences or drugs to make you sleep.

The machine does not isolate man from the great problems of nature but plunges him more deeply into them.

No individual is isolated. He who is sad, saddens others.

How could drops of water know themselves to be a river? Yet the river flows on.