without any rest or cessation, which is the soul of that Natural body, both being infinite; but yet this onely corporeal Motion is infinitely various in its degrees or manners, and ways of moving; for it is nothing else but the action of natural Matter, which action must needs be infinite, being the action of an infinite body, making infinite figures and parts. These motions and actions of Nature, since they are so infinitely various, when men chance to observe some of their variety, they call them by some proper name, to make a distinguishment, especially those motions which belong to the figure of their own kind; and therefore when they will express the motions of dissolution of their own figure, they call them Death; when they will express the motions of Production of their figure, they call them Conception and Generation; when they will express the motions proper for the Consistence, Continuance and Perfection of their Figure, they call them Health; but when they will express the motions contrary to these, they call them Sickness, Pain, Death, and the like: and hence comes also the difference between regular and irregular motions; for all those Motions that belong to the particular nature and consistence of any figure, they call regular, and those which are contrary to them, they call irregular. And thus you see, _Madam_, that there is no such thing in Nature, as Death, Sickness, Pain, Health, &c. but onely a variety and change of the corporeal motions, and that those words express nothing else but the variety of motions in Nature; for men are apt to make more distinctions then Nature doth: Nature knows of nothing else but of corporeal figurative Motions, when as men make a thousand distinctions of one thing, and confound and entangle themselves so, with Beings, Non-beings, and Neutral-beings, Corporeals and Incorporeals, Substances and Accidents, or manners and modes of Substances, new Creations, and Annihilations, and the like, as neither they themselves, nor any body else, is able to make any sense thereof; for they are like the tricks and slights of Juglers, 'tis here, 'tis gone; and amongst those _Authors_ which I have read as yet, the most difficult to be understood is this _Author_ which I am now perusing, who runs such divisions, and cuts Nature into so small Parts, as the sight of my Reason is not sharp enough to discern them. Wherefore I will leave them to those that are more quick-sighted then I, and rest, Madam, _Your constant Friend,_ _and faithful Servant._ [1] Of the seat of the Soul. _It._ Of the Image of the Mind. XXIV. _MADAM,_