18. But as it is, God has placed and arranged the limbs and organs in the body, each [particular one] of them, just as He wished and saw fit and with the best adaptation.
19. But if [the whole] were all a single organ, where would the body be?
20. And now there are [certainly] many limbs and organs, but a single body.
21. And the eye is not able to say to the hand, I have no need of you, nor again the head to the feet, I have no need of you.