Men are disturbed not by things, but by the view which they take of them.Epictetus
“If you want to improve, be content to be thought foolish and stupid.”
Stoic philosopher · 50 – 135
Epictetus was a Greek-born slave in Rome who won his freedom and became one of the most influential Stoic teachers. His Discourses and the handbook known as the Enchiridion teach that freedom lies in mastering one's own judgments and desires.
More like this

First say to yourself what you would be; and then do what you have to do.Epictetus

Wealth consists not in having great possessions, but in having few wants.Epictetus
It's not what happens to you, but how you react to it that matters.Epictetus
One that desires to excel should endeavour in those things that are in themselves most excellent.Epictetus
The world turns aside to let any man pass who knows where he is going.Epictetus

No great thing is created suddenly.Epictetus
If you seek truth you will not seek victory by dishonourable means, and if you find truth you will become invincible.Epictetus