Meditations 12.17

If it is not right, do not do it: if it is not true, do not say it. [For let thy efforts be—]

Marcus Aurelius, Meditations 12.17, translated by George Long

If not meet, do it not: if not true, say it not. For let thine impulse be in thy own power.

Marcus Aurelius, Meditations 12.17, translated by C. R. Haines