People always fancy that we must become old to become wise; but, in truth, as years advance, it is hard to keep ourselves as wise as we were.

The child, offered the mother's breast, Will not in the beginning grab it; But soon it clings to it with zest. And thus at wisdom's copious breasts You'll drink each day with greater zest.

He who moves not forward, goes backward.

To have more, you must first be more.

The eye doesn't see any shapes, it sees only what is differentiated through light and dark or through colors.

The man with insight enough to admit his limitations comes nearest to perfection.

A man's manners are a mirror in which he shows his portrait.