Against the Physicists, Books IX-X of Against the Learned Section 309

τὸ μὲν οὖν ὅλον ἀπὸ τοῦ ὅλου ἀφαιρεῖσθαι τελέως ἐστὶν ἀδύνατον· οὐδεὶς γὰρ ἀπὸ πήχεως ἀφαιρεῖ πῆχυν, οὐδὲ ἀπὸ κοτύλης κοτύλην, ἐπεὶ τὸ τοιοῦτον οὐκ ἔσται τινὸς ἀφαίρεσις, ἀλλὰ ὁλοσχερὴς τοῦ ὑποκειμένου ἀναίρεσις.

For whole to be subtracted from whole is utterly impossible. No one subtracts a cubit from a cubit or a cotyle from a cotyle, since this would not be the subtraction of something but the complete removal of the underlying thing.

Qu’un tout soit retranché d’un tout est absolument impossible. Personne ne retranche une coudée d’une coudée, ni un cotyle d’un cotyle, puisque cela ne serait pas la soustraction d’une chose, mais la suppression complète du substrat.