Plato, Letters 346c

κατὰ Πελοπόννησον μὲν καὶ Ἀθήνας κείσθω παρʼ οἷστισιν ἂν ὑμῖν δοκῇ, καρπούσθω δὲ δίων, μὴ κύριος δὲ ἄνευ ὑμῶν γιγνέσθω ἀνελέσθαι. ἐγὼ γὰρ ἐκείνῳ μὲν οὐ σφόδρα πιστεύω τούτοις χρώμενον ἂν τοῖς χρήμασιν δίκαιον γίγνεσθαι περὶ ἐμέ—οὐ γὰρ ὀλίγα ἔσται—σοὶ δὲ καὶ τοῖς σοῖς μᾶλλον πεπίστευκα. ὅρα δὴ ταῦτα εἴ σοι ἀρέσκει, καὶ μένε ἐπὶ τούτοις τὸν ἐνιαυτὸν τοῦτον, εἰς δὲ ὥρας ἄπιθι

with his security. And all the property he shall take shall be deposited in the Peloponnese and Athens with such persons as you shall think fit; and he shall enjoy the income from it but shall not be authorized to remove it without your consent. For I do not altogether trust him to act justly towards me if he had the use of these funds—for they will be by no means small; and I put more trust in you and your friends. So consider whether this arrangement contents you, and remain on these terms for the present year, and when next season arrives depart and take with you these funds of Dion. And I am well assured that Dion