here it was with the utmost difficulty, that I brought him to apprehend what I meant. He could easily conceive, that a Houyhnhnm grew weak and heavy a few days before his death, or by some accident might hurt a limb: but that nature, who works all things to perfection, should suffer any pains to breed in our bodies, he thought impossible, and desired to know the reason of so unaccountable an evil. I told him, we fed on a thousand things, which operated contrary to each other; that we eat when we were not hungry, and drank without the provocation of thirst; that we sat whole nights drinking strong liquors, without eating a bit, which disposed us to sloth, enflamed our bodies, and precipitated, or prevented digestion. That prostitute female yahoos acquired a certain malady, which bred rottenness in the bones of those who fell into their embraces; that this, and many other diseases, were propagated from father to son; so that great numbers come into the world with complicated maladies upon them: that it would be endless to give him a catalogue of all diseases incident to human bodies; for they could not be fewer than five or six hundred, spread over every limb and joint; in short, every part, external and intestine, having diseases appropriated to itself. To remedy which, there was a sort of people bred up among us in the profession, or pretence, of curing the sick. And because I had some skill in the faculty, I would, in gratitude to his honour, let him know the whole mystery and method, by which they proceed.
Their fundamental is, that all diseases arise from repletion; whence they conclude, that a great evacuation of the body is necessary, either through the
