§10.3.1Πᾶν τὸ συμβαῖνον ἤτοι οὕτω συμβαίνει ὡς πέφυκας αὐτὸ φέρειν ἢ ὡς οὐ πέφυκας αὐτὸ φέρειν.
Everything that happens happens in such a way that you are either formed by nature to bear it or not formed by nature to bear it.
εἰ μὲν οὖν συμβαίνει σοι ὡς πέφυκας φέρειν. μὴ δυσχέραινε, ἀλλ’ ὡς πέφυκας φέρε.
If, then, it happens to you in such a way that you are formed by nature to bear it, do not complain, but bear it as you are formed by nature to do.
εἰ δὲ ὡς μὴ πέφυκας φέρειν, μὴ δυσχέραινε· φθαρήσεται γάρ σε ἀπαναλῶσαν.
But if it happens in such a way that you are not formed by nature to bear it, do not complain, for it will perish after it has consumed you.
μέμνησο μέντοι ὅτι πέφυκας φέρειν πᾶν, περὶ οὗ ἐπὶ τῇ ὑπολήψει ἐστὶ τῇ σῇ φορητὸν καὶ ἀνεκτὸν αὐτὸ ποιῆσαι κατὰ φαντασίαν τοῦ συμφέρειν ἢ καθήκειν σεαυτῷ τοῦτο ποιεῖν.
Remember, however, that you are formed by nature to bear everything which it is in the power of your judgment to make bearable and tolerable, by representing to yourself that to do this is either to your advantage or your duty.