[3] _Ch._ The ignorant natural Philosophy of _Aristotle_ and _Galen_. [4] _Ch._ A modern Pharmacopoly and dispensatory. [5] _Ch._ Of the Power of Medicines. [6] _Ch._ Heat doth not digest efficiently, but excitingly. [7] _Ch._ The first Principles of the Chymists, not the Essences of the same are of the Army of Diseases. [8] In the _Ch._ Of Life Eternal, and in the _Ch._ Of the Tree of Life. XIV. _MADAM,_ I have read your _Authors_ discourse concerning _Sensation_,[1] but it was as difficult to me to understand it, ash was tedious to read it; Truly, all the business, might have been easily declared in a short Chapter, and with more clearness and perspicuity: For Sensation, is nothing else but the action of sense proceeding from the corporeal sensitive motions, which are in all Creatures or parts of Nature, and so all have sense and sensation, although not alike after one and the same manner, but some more, some less, each according to the nature and propriety of its figure. But your _Author_ speaks of _Motion without Sense, and Sense without Motion_, which is a meer impossibility; for there is not, nor cannot be any Motion in Nature without Sense, nor any Sense without Motion; there being no Creature without self-motion, although not always perceptible by us, or our external senses; for all motion is not exteriously local, and visible. Wherefore, not any part of Nature, according to my opinion, wants Sense and Reason, Life and Knowledg; but not such a substanceless Life as your _Author_ describes, but a substantial, that is a corporeal Life. Neither is Light the principle of Motion, but Motion, is the principle of Light: Neither is Heat the principle of Motion, but its effect as well as Cold is; for I cannot perceive that Heat should be more active then Cold. Neither is there any such thing as Unsensibleness in Nature, except it be in respect of some particular Sensation in some particular Figure: As for example, when an Animal dies, or its Figure is dissolved from the Figure of an Animal; we may say it hath not animal sense or motion, but we cannot say, it hath no sense or motion at all; for as long as Matter is in Nature, Sense and Motion will be; so that it is absurd and impossible to believe, or at least to think, that Matter, as a body, can be totally deprived of Life, Sense, and Motion, or that Life can perish and be corrupted, be it the smallest part of Matter conceivable, and the same turned or changed into millions of Figures; for the Life and Soul of Nature is self-moving Matter, which by Gods Power, and leave, is the onely Framer and Maker, as also the Dissolver and Transformer of all Creatures in Nature, making as well Light, Heat, and Cold, Gas, Blas, and Ferments, as all other natural Creatures beside, as also Passions, Appetites, Digestions, Nourishments, Inclination, Aversion, Sickness and Health; nay, all Particular Ideas, Thoughts, Fancies, Conceptions, Arts, Sciences, &c. In brief, it makes all that