Who said "A calm mind is a citadel."?

Marcus Aurelius (121–180 AD). Source: Meditations 8.48.

What is the original wording?

the mind which is free from passions is a citadel (George Long, 1862). Translated by George Long, 1862.

Yes. It is printed on our tees, from $46, with free US shipping.

Marcus Aurelius, Meditations 8.48

"A calm mind is a citadel." Marcus Aurelius said it in Meditations 8.48. Translated by George Long, 1862.

"the mind which is free from passions is a citadel"

George Long, 1862, Meditations 8.48.

Marcus Aurelius (121–180 AD). Roman emperor who wrote private notes to himself on a military campaign. We know them as the Meditations.

Who said "A calm mind is a citadel."?: Marcus Aurelius (121–180 AD). Source: Meditations 8.48.
What is the original wording?: the mind which is free from passions is a citadel (George Long, 1862). Translated by George Long, 1862.
Is "A calm mind is a citadel." on a shirt?: Yes. It is printed on our tees, from $46, with free US shipping.