Laws, written, if not on stone tables, yet on the azure of infinitude, in the inner heart of God's creation, certain as life, certain as death, are there, and thou shalt not disobey them.

The glory of a workman, still more of a master workman, that he does his work well, ought to be his most precious possession; like the honor of a soldier, dearer to him than life.

Neither had Watt of the Steam engine a heroic origin, any kindred with the princes of this world. The princes of this world were shooting their partridges... While this man with blackened fingers, with grim brow, was searching out, in his workshop, the Fire-secret.

He who has health, has hope; and he who has hope, has everything.

What is philosophy but a continual battle against custom?

Learn to be good readers, which is perhaps a more difficult thing than you imagine. Learn to be discriminative in your reading; to read faithfully, and with your best attention, all kinds of things which you have a real interest in,--a real, not an imaginary,--and which you find to be really fit for what you are engaged in.

Look to be treated by others as you have treated others.