muscles

For God made all things good in their order, the five senses in the head, and He joined on the neck to the head, adding to it the hair also for comeliness and glory, then the heart for understanding, the belly for excrement, and the stomach for grinding, the windpipe for taking in the breath, the liver for wrath, the gall for bitterness, the spleen for laughter, the reins for prudence, the muscles of the loins for power, the lungs for drawing in, the loins for strength, and so forth.

And yet most wonderful of all, he, being an old man, with the sinews of his body unstrung and his muscles relaxed and his nerves weakened, grew a young man again in the spirit of his Reason and with Isaac-like Reason turned the hydra-headed torture to impotence.