Plato, Letters 320a

Πλάτων Δίωνι Συρακοσίῳ εὖ πράττειν.οἶμαι μὲν φανερὰν εἶναι διὰ παντὸς τοῦ χρόνου τὴν ἐμὴν προθυμίαν περὶ τὰς συμβεβηκυίας πράξεις, καὶ ὅτι πολλὴν εἶχον περὶ αὐτῶν σπουδὴν εἰς τὸ συμπερανθῆναι, οὐκ ἄλλου τινὸς ἕνεκα μᾶλλον ἢ τῆς ἐπὶ τοῖς καλοῖς φιλοτιμίας·

Plato to Dion of Syracuse wishes well-doing. It has been plain, I believe, all along that I took a keen interest in the operations that have been carried out, and that I was most anxious to see them finally completed. In this I was mainly prompted