Note 59 — Chapter III · * OTHER COMPANIONS OF SOKRATES.

Aristotle does in fact grant all that is here said, in the same book and in the page next subsequent to that which contains his arguments against the Megaric doctrine, Metaphys. Θ. 5, 1048, a. 1-24.

In this chapter Aristotle distinguishes powers belonging to things, from powers belonging to persons — powers irrational from powers rational — powers in which the agent acts without any will or choice, from those in which the will or choice of the agent is one item of the aggregate of conditions. He here expressly recognises that the power of the agent, separately considered, is only conditional; that is, conditional on the presence and suitable state of the patient, as well as upon the absence of counteracting circumstances. But he contends that such absence of counteracting circumstances is plainly implied, and need not be expressly mentioned in the definition.

ἐπεὶ δὲ τὸ δυνατὸν τὶ δυνατὸν καὶ ποτὲ καὶ πῶς καὶ ὅσα ἄλλα ἀνάγκη προσεῖναι ἐν τῷ διορισμῷ —

τὸ δυνατὸν κατὰ λόγον ἅπαν ἀνάγκη, ὅταν ὀρέγηται, οὖ τ’ ἔχει τὴν δύναμιν καὶ ὡς ἔχει, τοῦτο ποιεῖν· ἔχει δὲ παρόντος τοῦ παθητικοῦ καὶ ὡδὶ ἔχοντος ποιεῖν· εἰ δὲ μή, ποιεῖν οὐ δυνήσεται. τὸ γὰρ μηθενὸς τῶν ἕξω κωλύοντος προσδιορίζεσθαι, οὐθὲν ἔτι δεῖ· τὴν γὰρ δύναμιν ἔχει ὥς ἔστι δύναμις τοῦ ποιεῖν, ἔστι δ’ οὐ πάντως, ἀλλ’ ἐχόντων πῶς, ἐν οἷς ἀφορισθήσεται καὶ τὰ ἕξω κωλύοντα· ἀφαιρεῖται γὰρ ταῦτα τῶν ἐν τῷ διορισμῷ προσόντων ἔνια. The commentary of Alexander Aphr. upon this chapter is well worth consulting (pp. 546-548 of the edition of his commentary by Bonitz, 1847). Moreover Aristotle affirms in this chapter, that when τὸ ποιητικὸν and τὸ παθητικὸν come together under suitable circumstances, the power will certainly pass into act.

Here then, it seems to me, Aristotle concedes the doctrine which the Megarics affirmed; or, if there be any difference between them, it is rather verbal than real. In fact, Aristotle’s reasoning in the third chapter (wherein he impugns the doctrine of the Megarics), and the definition of δυνατὸν which he gives in that chapter (1047, a. 25), are hardly to be reconciled with his reasoning in the fifth chapter. Bonitz (Notes on the Metaphys. pp. 393-395) complains of the mira levitas of Aristotle in his reasoning against the Megarics, and of his omitting to distinguish between Vermögen and Möglichkeit. I will not use so uncourteous a phrase; but I think his refutation of the Megarics is both unsatisfactory and contradicted by himself. I agree with the following remark of Bonitz:—“Nec mirum, quod Megarici, aliis illi quidem in rebus arguti, in hâc autem satis acuti, existentiam τῷ δυνάμει ὄντι tribuere recusarint,” &c.