"If you treat an individual as he is, he will remain as he is. But if you treat him as if he were what he ought to be and could be, he will become what he ought to be and could be."

"Man cannot live without a permanent belief in something indestructible in himself, though both the indestructible element and the belief may remain hidden from him."

"Grau, teurer Freund, ist alle Theorie, und grün des Lebens goldner Baum."

"The greatest evil is not done by evil people, but by good people who stand by and do nothing."

"He who cannot draw on three thousand years is living from hand to mouth."