Indeed, Sir; you have philosophised rightly, and well, yea, Arthodoxly, against the universal Medicament, according to that notorious, and far spred proverb. As many Heads, so many Senses. For as Sweet sounding Musick delights not the Ears of every Midas; nor doth the Same History related please all Historians; nor of Bread and Wine, of the same Taste, is there a like relish in all Palats. So also the judgements of Skilful Men do strangely differ, touching the wonderful Effect of this Universal Medicine, on Humane and Metallick Bodies. For this Universal Medicine, in its way of Operating, vastly differs, from a particular Medicine, which may in some sense be called Universal, as the Herb Scurvy-grass, curing every Scorbutick marked with blew Spots; or Sorrel, healing every Scurvy, noted with red Spots; or Brook-lime, healing an Atrophia of that Kind, or Fumitory remedying Tumors of that Kind: and that especially with such Physicians, with whom the Observation you before recited, is of any esteem. Moreover, there is an exceeding great difference between the Universal Medicine of Philosophers, refreshing the vital Spirits, and between a Particular Medicament of Proletary-Curation, with which is corrected the venom of Humors; viz. such as boyles up against Nature, in this Man, Acid; in that Man, the Bitter is predominant; in one, what is Saline, in another, what is sharp, grow potent. But, if these Corrupt humors be not without all delay presently expelled out of the Body, by the ordinary Emunctories of Nature either by the Belly, or by Urine of the Bladder, or by the Sweat through the Pores, or by the Spittle of the Mouth, or by the Nostrils, assuredly the corruption of one, becomes the Generation of another, viz. of a Disease. For, from every spark, if we do not timely extinguish it, an exceding great burning will arise. Also, if there be a defect, of the Vital Spirits, it is impossible to effect this. Therefore the only care of a Conscientious Physician should be, how to deduce the motion of the Vital Spirits to a digestible natural Heat, and that is best of all, and most securely performed by the Operation of our Universal Medicament, by which they are found to be notably recreated. For as soon as this more than perfect Medicine hath driven the Morbifick Evil from the Seat it occupies, then immediately it infuseth the lost Sanity, and that only from the Harmony, or Sympathy it self, which the Vital Spirits, and this Medicine, have mutually in themselves. Wherefore, it, by the Adept, is called the Mystery of Nature, and the Defensive of old Age, against all Diseases. Which, I say, even in a most pestilent Season, most full of contagious Diseases every where raging, makes of man a Salamander, bearing such Epidemical Plagues of Heaven displeased, until the utmost term of his Life be expired.