It is astonishing how much the word infinitely is misused: everything is infinitely more beautiful, infinitely better, etc. The concept must have something pleasing about it, or its misuse could not have become so general.

Above all things expand the frontiers of science: without this the rest counts for nothing.

A schoolteacher or professor cannot educate individuals, he educates only species.

There were honest people long before there were Christians and there are, God be praised, still honest people where there are no Christians. It could therefore easily be possible that people are Christians because true Christianity corresponds to what they would have been even if Christianity did not exist.

The noble simplicity in the works of nature only too often originates in the noble shortsightedness of him who observes it.

Why does a suppurating lung give so little warning and a sore on the finger so much?

A man is never more serious than when he praise himself.