- Know thyself.
- If a man would move the world, he must first move himself.
- Remember, no human condition is ever permanent. Then you will not be overjoyed in good fortune nor too scornful in misfortune.
- Contentment is natural wealth, luxury is artificial poverty.
- Life contains but two tragedies. One is not to get your heart's desire; the other is to get it.
- One thing only I know, and that is that I know nothing.
- The hottest love has the coldest end.
- My advice to you is get married: if you find a good wife you'll be happy; if not, you'll become a philosopher.
- Our prayers should be for blessings in general, for God knows best what is good for us.
- I cannot teach anybody anything, I can only make them think.