These are Instances of several Methods, widely differing from one another, and yet of absolute Necessity in their particular Cases, which shews us, that we ought not to be so eager after Courses of Pharmacy in all Cases, without distinguishing where other ways are most rational. It is one thing to dispose Nature to collect her own Strength, and throw off her Enemy; and it is another to assist her by the ~Corpuscula~, the Minute parts of a Medicine given inwardly; the first way has Regard to the whole Animal Oeconomy; the second reflects the Blood and Juices chiefly; the first may succeed, where the second cannot, because here the Laws of Motion, and the Rules of the Oeconomy are enforc’d, and brought to be assisting to a Recovery of Health, which in some few Cases can’t be effected by a private and simple Attempt upon the Blood only._ _These are Notices which don’t lie so far out of the reach of any Man, that will give himself leave to animadvert upon the Misfortunes of his Neighbours, but that they may discern’d; and if they were duly considered, there could be no room for Empiricism, for that is founded on the Folly, or Negligence of Mankind; and if Men will give themselves up to Expectation, and resolve to be always alike Passive, in Hopes the Miracle will be wrought upon ’em, without any Concurrence on their part, it is but just they should suffer something from the Pedantry, the little things of the Profession, which they are so dispos’d to receive._ _As for the Exercise of the Body, which is the Subject of this ensuing Discourse, if People would not think so superficially of it, if they would but abstract the Benefit got by it, from the Means by which it is got, they would set a great Value upon it; if some of the Advantages accruing from Exercise, were to be procur’d by any one Medicine, nothing in the World would be in more Esteem, than that Medicine would be; but as those Advantages are to be obtain’d another way, and by taking some Pains, Mens Heads are turn’d to overlook and slight ’em. The habitual increasing of the Natural Heat of the Body, as I took Notice above, is not to be despis’d; but if we consider that it is done without charging Nature with any subsequent Load, it ought to be more valuable, for I may by some generous Medicine, or a Glass of Wine, raise Nature to a great Pitch for a time, but then when these Ingredients come to be digested and resolv’d into their Principles, Nature may be more oppress’d with the Remains of the Medicine, than she was at first reliev’d by it: Therefore if any Drug could cause such an Effect, as the Motion of the Bodies does, in this Respect, it would be of singular Use, in some tender Cases upon this very Account; but then add to this the great Strength, which the Muscular and Nervous parts acquire by Exercises, if that could be adequately obtain’d likewise by the same Internal Means, what a Value, what an extravagant Esteem, would Mankind have for that Remedy, which