You can have no dominion greater or less than that over yourself.

Every action needs to be prompted by a motive. To know and to will are two operations of the human mind. Discerning, judging, deliberating are acts of the human mind.

True and great love springs out of great knowledge, and where you know little you can love but little or not at all.

Though I may not . . . be able to quote other authors, I shall rely on that which is much greater and more worthy - on experience.

Avoid the precepts of those thinkers whose reasoning is not confirmed by experience.

Sculptured figures which appear in motion, will, in their standing position, actually look as if they were falling forward.

Avoid studies of which the result dies with the worker.