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

If it's in your control, why do you do it? If it's in someone else's control, then who are you blaming? Atoms? The gods? Stupid either way. Blame no one. Set people straight, if you can. If not, just repair the damage.

The perfection of moral character consists in this, in passing every day as the last, and in being neither violently excited nor torpid nor playing the hypocrite.

Always follow these two rules: first, act only on what your reasoning mind proposes for the good of humanity, and second, change your opinion if someone shows you it's wrong. This change of mind must proceed only from the conviction that it's both correct and for the common good, but not because it will give you pleasure and make you popular.

Receive the gifts of fortune without pride, and part with them without reluctance.

The universal nature out of the universal substance, as if it were wax, now molds a horse, and when it has broken this up, it uses the material for a tree, then for a man, then for something else.

The things you think about determine the quality of your mind. Your soul takes on the color of your thoughts.