When someone admits one and rejects another which is equally in accordance with the appearances, it is clear that he has quitted all physical explanation and descended into myth.

There is no such thing as justice or injustice among those beasts that cannot make agreements not to injure or be injured. This is also true of those tribes that are unable or unwilling to make agreements not to injure or be injured.

Natural wealth is limited and easily obtained; the wealth defined by vain fancies is always beyond reach.

The flesh believes that pleasure is limitless and that it requires unlimited time; but the mind, understanding the end and limit of the flesh and ridding itself of fears of the future, secures a complete life and has no longer any need for unlimited time.

If the gods have the will to remove evil and cannot, then they are not all-powerful. If they are neither able nor willing, they are neither all-powerful or benevolent. If they are both able and willing to annihilate evil, why does it exist?

He who understands the limits of life knows that it is easy to obtain that which removes the pain of want and makes the whole of life complete and perfect. Thus he has no longer any need of things which involve struggle.

Virtue consisteth of three parts,--temperance, fortitude, and justice.