Cornelius Nepos, Atticus 25.11
“It is difficult to explain everything and not really necessary. But I do want to make this one thing clear, that his generosity was not offered at advantageous moments or with specific calculation. This can be evaluated from the events and times themselves, because he never ministered to those in power but always rushed to help those in need.”
Difficile est omnia persequi et non necessarium. Illud unum intellegi volumus, illius liberalitatem neque temporariam neque callidam fuisse. Id ex ipsis rebus ac temporibus iudicari potest, quod non florentibus se venditavit, sed afflictis semper succurrit
Marcus Aurelius, Meditations 6.47
“So one thing is worth much: to keep on living with truth and justice and in good will even among liars and unjust men”
Ἓν ὧδε πολλοῦ ἄξιον, τὸ μετ᾿ ἀληθείας καὶ δικαιοσύνης εὐμενῆ τοῖς ψεύσταις καὶ ἀδίκοις διαβιοῦν.

Better citation from twitter: