“Gelehrte dirigieren ist nicht viel besser als eine Komödiantengruppe unter sich zu haben.”

“Faith can be interested in results only, for a truth once recognized as such puts an end to the believer's thinking.”

“If we reason that we want happiness for others, not for ourselves, then we ought justly to be suspected of failing to recognize human nature for what it is and of wishing to turn men into machines.”

“The price of apparent happiness and enjoyment is the neglect of the spontaneous active energies of the acting members.”

“All situations in which the interrelationships between extremes are involved are the most interesting and instructive.”

“The best and noblest parts of man depend precious little on culture, education, and whatever else it is called. One can never have enough respect for true humanity as it is visible in the persons of the totally uneducated classes, and never enough humility if one sometimes believes one is superior to them.”

“Results are nothing; the energies which produce them and which again spring from them are everything.”