O senhor de si mesmo é aquele que possui o poder de conservar ou repelir as coisas desejadas ou não desejadas. - Epictetus

Remember that it is we who torment, we who make difficulties for ourselves – that is, our opinions do. What, for instance, does it mean to be insulted? Stand by a rock and insult it, and what have you accomplished? If someone responds to insult like a rock, what has the abuser gained with his invective?

The key is to keep company only with people who uplift you, whose presence calls forth your best.

Este es el origen del sufrimiento, querer algo y que no suceda