οὐκ ἂν λάβοις παρὰ τοῦ μὴ ἔχοντος → you can't take from one who doesn't have, you can't squeeze blood out of a turnip, you can't get blood out of a turnip, you can't get blood from a stone, you can't get blood out of a stone
α, ον :adj. verb. de ἀπεικάζω.
verb. adj. of ἀπεικάζωone must represent, Xen.