Mathematics should be mixed not only with physics but with ethics.

To say that God has given a man many and great talents frequently means that he has brought his heavens down within reach of his hands.

Friends will not only live in harmony, but in melody.

You must ascend a mountain to learn your relation to matter, and so to your own body, for it is at home there, though you are not.

Men are probably nearer the essential truth in their superstitions than in their science.

Do what you know you ought to do. Why should we ever go abroad, even across the way, to ask a neighbor's advice? There is a nearerneighbor within us incessantly telling us how we should behave. But we wait for the neighbor without to tell us of some false, easier way.

Much of our poetry has the very best manners, but no character.