A quotation from Marcus Aurelius
In a word, there is only one thing here worth the minding, and that is, to be true and just, and to show benevolence, even to the untrue and unjust.
[Ἓν ὧδε πολλοῦ ἄξιον, τὸ μετ᾿ ἀληθείας καὶ δικαιοσύνης εὐμενῆ τοῖς ψεύσταις καὶ ἀδίκοις διαβιοῦν.]
Marcus Aurelius (AD 121-180) Roman emperor (161-180), Stoic philosopher
Meditations [To Himself; Τὰ εἰς ἑαυτόν], Book 6, ch. 47 (6.47) (AD 161-180) [tr. Collier/Zimmern (1887)]
Sourcing, notes, other translations: wist.info/marcus-aureleus/7834…