Freedom and happiness come from understanding - and working with - our limits. Begin at once a program of self-mastery. Stick with your purpose. Do not seek external approval. Do not worry about anything outside of your control. The only things you command are your thoughts and actions. We choose our response. Stop aspiring to be anyone other than your own best self: for that does fall within your control.
EpictetusSo you wish to conquer in the Olympic Games, my friend? And I, too... But first mark the conditions and the consequences. You will have to put yourself under discipline; to eat by rule, to avoid cakes and sweetmeats; to take exercise at the appointed hour whether you like it or not, in cold and heat; to abstain from cold drinks and wine at your will. Then, in the conflict itself you are likely enough to dislocate your wrist or twist your ankle, to swallow a great deal of dust, to be severely thrashed, and after all of these things, to be defeated.
EpictetusTruth is a thing immortal and perpetual, and it gives to us a beauty that fades not away in time, nor does it take away the freedom of speech which proceeds from justice; but it gives to us the knowledge of what is just and lawful, separating from them the unjust and refuting them.
EpictetusWhen you have decided that a thing ought to be done and are doing it, never avoid bein seen doing it, though many shall form an unfavorable opinion about it. For if it is not right to do it, avoid doing the thing; but if it is right, why are you afraid of those who shall find fault wrongly?
Epictetus