Marcus Aurelius on Letting Go of Anger
"The best way to avenge yourself is not to become like your enemy." Marcus Aurelius wrote this for himself, but it punches through centuries of grudges.

Unknown — "Cameo: Head of a Woman" (1–100 CE), CC0
Don’t mirror your enemies.
In Meditations (Book 6), Marcus Aurelius writes: «Ἡ κάλλιστη ἐκδίκησις ἐστὶ τοῦ μὴ ἐξομοιωθῆναι τῷ ἀδικήσαντι.» — "The best way to avenge yourself is not to become like your enemy." Forgiveness wasn’t softness to him — it was a way to stay clean.
Don’t drink the poison.
For Marcus, bitterness was a second injury. Stoic revenge is inward: defeat anger by refusing to carry someone else’s disease. Hard in principle, harder in the heart.
Marcus spent his reign surrounded by betrayal, backstabbing, and war. He could have turned bitter. Instead, he sharpened his will — and left revenge to rot.