Ask not that events should happen as you will, but let your will be that events should happen as they do, and you shall have peace.
When a youth was giving himself airs in the Theatre and saying, 'I am wise, for I have conversed with many wise men,' Epictetus replied, 'I too have conversed with many rich men, yet I am not rich!’.
If you wish to live a life free from sorrow, think of what is going to happen as if it had already happened.
He is a man of sense who does not grieve for what he has not, but rejoices in what he has.
If thy brother wrongs thee, remember not so much his wrong-doing, but more than ever that he is thy brother.
Silence is safer than speech.