Loss and sorrow are only possible with respect to things we own. - Epictetus

You would fain be victor at the Olympic Games, you say. Yes, but weigh the conditions, weigh the consequences; then and then only, lay to your hand-if it be for your profit. You must live by rule, submit to diet, abstain from dainty meats, exercise your body perforce at stated hours, in heat or in cold; drink no cold water, nor, it may be, wine. In a word, you must surrender yourself wholly to your trainer, as though to a physician.

Diogenes says somewhere that one way to guarantee freedom is to be ready to die.

Después de deliberar y determinar que una línea de acción es acertada, jamás pongas en duda tu juicio. Apoya tu decisión.