We truly know only what we have taught ourselves

The world is chiefly a mental fact. From mind it receives the forms of time and space, the principle of casuality[sic], color, warmth, and beauty. Were there no mind, there would be no world.

True readers … are ready to go through a whole volume, if there be but hope of finding in it a single genuine thought or the mere suggestion even of a truth which has some fresh application to life.

The strong man is he who knows how and is able to become and be himself; the magnanimous man is he who, being strong, knows how and is able to issue forth from himself, as from a fortress, to guide, protect, encourage, and save others.

However firmly thou holdest to thy opinions, if truth appears on the opposite side, throw down thy arms at once.

Each one fashions and bears his world with him, and that unless he himself become wise, strong and loving, no change in his circumstances can make him rich or free or happy.

To ask them to read books whose life-breath is pure thought and beauty is as though one asked them to read things written in a language they do not understand and have no desire to learn.