“For it is in your power to retire into yourself whenever you choose.”

“It is in your power to withdraw yourself whenever you desire. Perfect tranquility within consists in the good ordering of the mind, the realm of your own.”

“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?”

“Whenever you want to cheer yourself up, consider the good qualities of your companions, for example, the energy of one, the modesty of another, the generosity of yet another, and some other quality of another; for nothing cheers the heart as much as the images of excellence reflected in the character of our companions, all brought before us as fully as possible. Therefore, keep these images ready at hand.”

“If you are pained by external things, it is not they that disturb you, but your own judgement of them. And it is in your power to wipe out that judgement now.”

“You have power over your mind - not outside events. Realize this, and you will find strength.”

“Do not act as if you had ten thousand years to throw away. Death stands at your elbow. Be good for something while you live and it is in your power.”