One often contradicts an opinion when what is uncongenial is really the tone in which it was conveyed.

It is not conflict of opinions that has made history so violent but conflict of belief in opinions, that is to say conflict of convictions.

In art the end does not sanctify the means: but sacred means employed here can sanctify the end.

They call you heartless; but you have a heart and I love you for being ashamed to show it.

If one seeks relief from unbearable pressure, one is to eat hashish.

Mathematics is merely the means to a general and ultimate knowledge of man.

We seldom break our leg so long as life continues a toilsome upward climb. The danger comes when we begin to take things easily and choose the convenient paths.