"Reason is immortal, all else mortal."

"ἀλλήλοις θ᾽ ὁμιλεῖν, ὡς τοὺς μὲν φίλους ἐχθροὺς μὴ ποιῆσαι, τοὺς δ᾽ ἐχθροὺς φίλους ἐργάσασθαι. ἴδιόν τε μηδὲν ἡγεῖσθαι."

"Τὴν δ' ἀνθρώπου ψυχὴν διῃρῆσθαι τριχῆ, εἴς τε νοῦν καὶ φρένας καὶ θυμόν. νοῦν μὲν οὖν καὶ θυμὸν εἶναι καὶ ἐν τοῖς ἄλλ…"

"ἐν ὀργῇ μήτε τι λέγειν μήτε πράσσειν"

"Attempt nothing above thy strength!"

"Be not hasty to speak; nor slow to hear!"

"I was Euphorbus at the siege of Troy."

"By the air which I breathe, and by the water which I drink, I will not endure to be blamed on account of this discourse."

"Dear youths, I warn you cherish peace divine, And in your hearts lay deep these words of mine."

"The most momentous thing in human life is the art of winning the soul to good or to evil."