The noblest kind of retribution is not to become like your enemy.

We are born for cooperation

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.

That which makes the man no worse than he was makes his life no worse: it has no power to harm, without or within.

Where life is possible at all, a right life is possible; life in a palace is possible; therefore even in a palace a right life is possible.

We are too much accustomed to attribute to a single cause that which is the product of several, and the majority of our controversies come from that.

Retire into thyself. The rational principle which rules has this nature, that it is content with itself when it does what is just, and so secures tranquility.