I will set sail unless anything happens to prevent me, I shall be praetor, if nothing hinders me, my financial operations will succeed, unless anything goes wrong with them.
This is why we say that nothing befalls the wise man which he did not expect—we do not make him exempt from the chances of human life, but from its mistakes, nor does everything happen to him as he wished it would, but as he thought it would: now his first thought was that his purpose might meet with some resistance, and the pain of disappointed wishes must affect a man’s mind less severely if he has not been at all events confident of success.