To get or not to get what we desire can be equally disappointing.

In prosperity it is very easy to find a friend; but in adversity it is the most difficult of all things.

Not things, but opinions about things, trouble men.

You can be invincible, if you enter into no contest in which it is not in your power to conquer.

It is impossible for a man to learn what he thinks he already knows.

First tell yourself what you want to be, then do what you need to do.

Were I a nightingale, I would act the part of a nightingale; were I a swan, the part of a swan.