Diogenes Laertius, Lives of the Eminent Philosophers 10.22
Epicurus writes a letter on his deathbed.
ἤδη δὲ τελευτῶν γράφει πρὸς Ἰδομενέα τήνδε ἐπιστολήν· “τὴν μακαρίαν ἄγοντες καὶ ἅμα τελευταίαν ἡμέραν τοῦ βίου ἐγράφομεν ὑμῖν ταυτί. στραγγουρικά τε παρηκολούθει καὶ δυσεντερικὰ πάθη ὑπερβολὴν οὐκ ἀπολείποντα τοῦ ἐν ἑαυτοῖς μεγέθους. ἀντιπαρετάττετο δὲ πᾶσι τούτοις τὸ κατὰ ψυχὴν χαῖρον ἐπὶ τῇ τῶν γεγονότων ἡμῖν διαλογισμῶν μνήμῃ. σὺ δ’ ἀξίως τῆς ἐκ μειρακίου παραστάσεως πρὸς ἐμὲ καὶ φιλοσοφίαν ἐπιμελοῦ τῶν παίδων Μητροδώρου.”
When he was already dying he wrote the following letter to Idomeneus: “Living this blessed and also final day of my life I write this to you. Sufferings from strangury and dysentery are continually with me, and there is no way in which there could be any increase in their magnitude. Yet against them all I set the joy of my soul at the remembrance of our past conversations. But as for you: as befits your support of me and of philosophy since your youth, take care of Metrodorus’ children.”