Nay, much more those members of the body, which seem to be more feeble, are necessary:
Ἀλλὰ πολλῷ μᾶλλον τὰ δοκοῦντα μέλη τοῦ σώματος ἀσθενέστερα ὑπάρχειν, ἀναγκαῖά ἐστι·