If evil be spoken of you and it be true, correct yourself, if it be a lie, laugh at it.

I laugh at those who think they can damage me. They do not know who I am, they do not know what I think, they cannot even touch the things which are really mine and with which I live.

Nothing is in reality either pleasant or unpleasant by nature but all things become so through habit

Don't just say you have read books. Show that through them you have learned to think better, to be a more discriminating and reflective person. Books are the training weights of the mind. They are very helpful, but it would be a bad mistake to suppose that one has made progress simply by having internalized their contents." Translation by Sharon Lebell

Preach not to others what they should eat, but eat as becomes you and be silent.

If you do not wish to be prone to anger, do not feed the habit; give it nothing which may tend to its increase. At first, keep quiet and count the days when you were not angry: "I used to be angry every day, then every other day: next, every two, then every three days!" and if you succeed in passing thirty days, sacrifice to the gods in thanksgiving.

If you want to improve, be content to be thought foolish and stupid.