Against the Professors, Books I-VI of Against the Learned Section 87

ἐπεὶ οὖν ὁ Χαλδαῖος οὐκ ἐτή |ρησε τὸν ἀκριβῆ τῆς γενέσεως χρόνον ἐπὶ τοῦδε τοῦ ἰδιώτου ἀλλὰ παρʼ αὐτοῦ τοῦτον ἀκούει, οὑτοσὶ δὲ ὁ ἰδιώτης τὰ μὲν διʼ ἀπειρίαν τὰ δὲ καὶ διὰ τὸ μὴ πάνυ τι ἐσπουδακέναι περὶ τὸ πρᾶγμα πάλιν οὐκ οἶδε τὸν ἀκριβῆ χρόνον, καταλείπεται ἄρα πρόρρησιν μὲν μηδʼ ἡντινοῦν βεβαίαν, πλάνην δὲ καὶ φενακισμὸν ἀπὸ Χαλδαϊκῆς τοῖς ἀνθρώποις περιγίνεσθαι.

Since, then, the Chaldean did not observe the precise time of this layperson's birth but hears it from the man himself, while this layperson in turn does not know the precise time, partly through inexperience and partly because he did not take the matter very seriously, it follows that no prediction whatsoever is reliable, but that the Chaldean art brings people error and deception.

Puisque le Chaldéen n’a pas observé le moment exact de la naissance de ce particulier, mais l’apprend de celui-ci, et puisque ce particulier ignore lui aussi ce moment exact, soit par inexpérience, soit parce qu’il ne s’est guère préoccupé de la question, il reste que la doctrine chaldéenne ne procure aux hommes aucune prédiction assurée, mais seulement erreur et tromperie.