True piety lies rather in the power to contemplate the universe with a quiet mind.

It is great wealth to a soul to live frugally with a contented mind.

The sum of all sums is eternity.

Anything made out of destructible matter Infinite time would have devoured before. But if the atoms that make and replenish the world Have endured through the immense span of the past Their natures are immortal-that is clear. Never can things revert to nothingness!

In the midst of the fountain of wit there arises something bitter, which stings in the very flowers.

What came from the earth returns back to the earth, and the spirit that was sent from heaven, again carried back, is received into the temple of heaven.

Fear is the mother of all gods ... Nature does all things spontaneously, by herself, without the meddling of the gods.