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
[Seite 974] τό, das Angenähete, Angesetzte, Poll. 4, 119 u. 7, 67 conj. für ἐπίῤῥημα.
