Plato, Laws 785a

περὶ τὰ τοιαῦτα τῶν πλειόνων ἀνομοθέτητα σιγῇ κείσθω, ἀκοσμούντων δὲ νομοθετηθέντα ταύτῃ πραττέσθω κατὰ τοὺς τότε τεθέντας νόμους. βίου μὲν ἀρχὴ τοῦ παντὸς ἑκάστοις ὁ πρῶτος ἐνιαυτός· ὃν γεγράφθαι χρεὼν ἐν ἱεροῖσι πατρῴοις ζωῆς ἀρχή. κόρῳ καὶ κόρῃ παραγεγράφθω δʼ ἐν τοίχῳ λελευκωμένῳ ἐν πάσῃ φρατρίᾳ τὸν ἀριθμὸν τῶν ἀρχόντων τῶν ἐπὶ τοῖς ἔτεσιν ἀριθμουμένων· τῆς δὲ φρατρίας ἀεὶ

or rather disesteem, shall be shown to persons of the opposite character. Sexual conduct shall lie unmentioned or unprescribed by law when the majority show due propriety therein; but if they are disorderly, then what is thus prescribed shall be executed according to the laws then enacted. For everyone the first year is the beginning of the whole life: it ought to be inscribed as life’s beginning for both boy and girl in their ancestral shrines: beside it, on a whited wall in every phratry, there should be written up the number of the archons who give its number to the year; and the names of the living members of the phratry shall be written always close together,