Mental power cannot be got from ill-fed brains.

Without painting, sculpture, music, poetry, and the emotions produced by natural beauty of every kind, life would lose half its charm.

Agnostics are people who, like myself, confess themselves to be hopelessly ignorant concerning a variety of matters, about which metaphysicians and theologians, both orthodox and heterodox, dogmatize with the utmost confidence.

Pervading all nature we may see at work a stern discipline , which is a little cruel that it may be very kind.

Religion has been compelled by science to give up one after another of its dogmas. . . .

No place, no company, no age, no person is temptation-free; let no man boast that he was never tempted, let him not be high-minded, but fear, for he may be surprised in that very instant wherein he boasteth that he was never tempted at all.

Absolute morality is the regulation of conduct in such a way that pain shall not be inflicted.