Time is man's most precious asset. All men neglect it; all regret the loss of it; nothing can be done without it.

One always begins with the simple, then comes the complex, and by superior enlightenment one often reverts in the end to the simple. Such is the course of human intelligence.

Society therefore is an ancient as the world.

The safest course is to do nothing against one's conscience. With this secret, we can enjoy life and have no fear from death.

Exaggeration, the inseparable companion of greatness.

Those who think are excessively few; and those few do not set themselves to disturb the world.

If we believe absurdities, we shall commit atrocities.