Diogenes Laertius, Epicurus 125-6
“Get used to believing that death is nothing to us since all good and evil reside in perception and death is the removal of perception. For this reason, a correct belief holding that death is nothing to us makes the mortality of life appreciable not because it adds a boundless amount of time but because it removes desire for immortality.
This is because there is nothing frightening in life when someone has fully understood that there is nothing frightening in not being alive. It is, therefore, foolish when someone says they will fear death not because it will cause harm when it is present but because its approach causes pain. Whatever does not annoy when it is present causes pointless pain in its expectation.
As the most frightening of evils, then, death is nothing to us since, whenever we are alive, death is not there. But when death is there, we are not! And it is nothing at all to either the living or the dead since it is nothing for the living and the dead are nothing too. But many people flee death as if it is the greatest of evils and then later choose it as a release from the evils in life. The wise person neither condemns life nor fears its end. Living does not bother them nor does not living seem to be an evil.”
“Συνέθιζε δὲ ἐν τῷ νομίζειν μηδὲν πρὸς ἡμᾶς εἶναι τὸν θάνατον· ἐπεὶ πᾶν ἀγαθὸν καὶ κακὸν ἐν αἰσθήσει· στέρησις δέ ἐστιν αἰσθήσεως ὁ θάνατος. ὅθεν γνῶσις ὀρθὴ τοῦ μηθὲν εἶναι πρὸς ἡμᾶς τὸν θάνατον ἀπολαυστὸν ποιεῖ τὸ τῆς ζωῆς θνητόν, οὐκ ἄπειρον προστιθεῖσα χρόνον ἀλλὰ τὸν τῆς ἀθανασίας ἀφελομένη πόθον. οὐθὲν γάρ ἐστιν ἐν τῷ ζῆν δεινὸν τῷ κατειληφότι γνησίως τὸ μηθὲν ὑπάρχειν ἐν τῷ μὴ ζῆν δεινόν. ὥστε μάταιος ὁ λέγων δεδιέναι τὸν θάνατον οὐχ ὅτι λυπήσει παρών, ἀλλ᾿ ὅτι λυπεῖ μέλλων. ὃ γὰρ παρὸν οὐκ ἐνοχλεῖ, προσδοκώμενον κενῶς λυπεῖ. τὸ φρικωδέστατον οὖν τῶν κακῶν ὁ θάνατος οὐθὲν πρὸς ἡμᾶς, ἐπειδή περ ὅταν μὲν ἡμεῖς ὦμεν, ὁ θάνατος οὐ πάρεστιν· ὅταν δ᾿ ὁ θάνατος παρῇ, τόθ᾿ ἡμεῖς οὐκ ἐσμέν. οὔτε οὖν πρὸς τοὺς ζῶντάς ἐστιν οὔτε πρὸς τοὺς τετελευτηκότας, ἐπειδήπερ περὶ οὓς μὲν οὐκ ἔστιν, οἱ δ᾿ οὐκέτι εἰσίν. ἀλλ᾿ οἱ πολλοὶ τὸν θάνατον ὁτὲ μὲν ὡς μέγιστον τῶν κακῶν φεύγουσιν, ὁτὲ δὲ ὡς ἀνάπαυσιν τῶν ἐν τῷ ζῆν <κακῶ> αἱροῦνται. ὁ δὲ σοφὸς οὔτε παραιτεῖται τὸ ζῆν> οὔτε φοβεῖται τὸ μὴ ζῆν