The substance of the universe is obedient and compliant; and the reason which governs it has in itself no cause for doing evil, for it has no malice, nor does it do evil to anything, nor is anything harmed by it. But all things are made and perfected according to this reason.

The best sort of revenue is not to be like him who did the injury.

Your mind will be like its habitual thoughts; for the soul becomes dyed with the color of its thoughts. Soak it then in such trains of thoughts as, for example: Where life is possible at all, a right life is possible.

If someone can prove me wrong and show me my mistake in any thought or action, I shall gladly change. I seek the truth, which never harmed anyone: the harm is to persist in one's own self-deception and ignorance.

Such as are thy habitual thoughts, such also will be the character of thy mind; for the soul is dyed by the thoughts.

We ought to do good to others as simply as a horse runs, or a bee makes honey, or a vine bears grapes season after season without thinking of the grapes it has borne.

Bear in mind that the measure of a man is the worth of the things he cares about.