Note 53 — Chapter III · * OTHER COMPANIONS OF SOKRATES.
Reading edition
Aristot. Metaph. Θ. 3, p. 1046, b. 29. Εἰσὶ δέ τινες, οἴ φασιν, οἷον οἱ Μεγαρικοί, ὅταν ἐνεργῇ, μόνον δύνασθαι, ὅταν δὲ μὴ ἐνεργῇ, μὴ δύνασθαι — οἷον τὸν μὴ οἰκοδομοῦντα οὐ δύνασθαι οἰκοδομεῖν, ἀλλὰ τὸν οἰκοδομοῦντα ὅταν οἰκοδομῇ· ὁμοίως δὲ καὶ ἐπὶ τῶν ἄλλων.
Deycks (De Megaricorum Doctrinâ, pp. 70-71) considers this opinion of the Megarics to be derived from their general Eleatic theory of the Ens Unum et Immotum. But I see no logical connection between the two.