Reflect often upon the rapidity with which all existing things, or things coming into existence, sweep past us and are carried away.

Whenever you are about to find fault with someone, ask yourself the following question: What fault of mine most nearly resembles the one I am about to criticize?

Everything that happens either happens in such a way as you are formed by nature to bear it, or as you are not formed by nature to bear it.

The one thing worth living for is to keep one's soul pure.

Remember that all things are only opinion and that it is in your power to think as you please.

Even while a thing is in the act of coming into existence, some part of it has already ceased to be.

You need to be prepared for firm decisions and action, without losing gentleness towards those who obstruct or abuse you. It's as great a weakness to be angry with them as it is to abandon your plan of action and give up through fear.