Whoever then wishes to be free, let him neither wish for anything nor avoid anything which depends on others: if he does not observe this rule, he must be a slave.
EpictetusOther people's views and troubles can be contagious. Don't sabotage yourself by unwittingly adopting negative, unproductive attitudes through your associations with others.
EpictetusYou can be invincible, if you enter into no contest in which it is not in your power to conquer.
Epictetus