Plato, Epinomis 973d

τοιαύτης τυχεῖν—λέγω δʼ οὐδὲν σοφόν, ἀλλʼ ὅπερ ἅπαντες Ἕλληνές τε καὶ βάρβαροι γιγνώσκομέν τινα τρόπον, ὡς ἐξ ἀρχῆς τὸ γενέσθαι χαλεπὸν ἅπαντι ζῴῳ· πρῶτον μὲν τὸ μετασχεῖν τῆς τῶν κυουμένων ἕξεως, ἔπειτʼ αὖ τὸ γίγνεσθαι, καὶ ἔτι τὸ τρέφεσθαι καὶ παιδεύεσθαι, διὰ πόνων μυρίων

no subtle doctrine, but a thing that all of us, Greeks and foreigners alike, in some way perceive—that from the beginning existence is difficult for every live creature: first, partaking of the state of things conceived, then again, being born, and further, being reared and educated—all these processes involve a vast amount of toil,