[1] I PRESENT you with this Sixth Book of Table Discourses, wherein the first thing that cometh to be discussed is an enquiry into the reason why those that are fasting are more inclinable to drink than to eat. For the assertion carries in it a repugnancy to the standing rules of reason; forasmuch as the decayed stock of dry nourishment seems more naturally to call for its proper supplies. Whereupon I told the company, that of those things whereof our bodies are composed, heat only—or, however, above all the rest— stands in continual need of such accessions; for the truth of which this may be urged as a convincing argument: neither air, water, nor earth requires any matter to feed upon, or devours whatsoever lies next it; but fire alone doth. Hence it comes to pass that young men, by reason of their greater share of natural heat, have commonly greater stomachs than old men; whereas on the contrary, old men can endure fasting much better, for this only reason, because their natural heat is grown weaker and decayed. Just so we see it fares with bloodless animals, which by reason of the want of heat require very little nourishment. Besides, every one of us finds by experience, that bodily exercises, clamors, and whatever other actions by violent motion occasion heat, commonly sharpen our stomachs and get us a better appetite. Now, as I take it, the most natural and principal nourishment of heat is moisture, as it evidently appears from flames, which increase by the pouring in of oil, and from ashes, which are of the driest things in nature; for after the humidity is consumed by the fire, the terrene and grosser parts remain without any moisture at all. Add to these, that fire separates and dissolves bodies by extracting that moisture which should keep them close and compact. Therefore, when we are fasting, the heat first of all forces the moisture out of the relics of the nourishment that remain in the body, and then, pursuing the other humid parts, preys upon the natural moisture of the flesh itself. Hence the body like clay grows dry, wants drink more than meat; till the heat, receiving strength and vigor by our drinking, excites an appetite for more substantial food.