Men are disturbed not by things, but by the view which they take of them.Epictetus
“Only the educated are free.”
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.
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When you are offended at any man's fault, turn to yourself and study your own failings. Then you will forget your anger.Epictetus

Control thy passions lest they take vengeance on thee.Epictetus

Do not say of anything that 'I have lost it,' but that 'I have given it back.'Epictetus
We have two ears and one mouth so that we can listen twice as much as we speak.Epictetus

Don't demand that things happen as you wish, but wish that they happen as they do happen, and you will go on well.Epictetus

If you want to improve, be content to be thought foolish and stupid.Epictetus
Nature gave us one tongue and two ears so we could hear twice as much as we speak.Epictetus