and activity, is not subject to our grosser senses; However, these are not Incorporeal, be they never so pure and subtil. And I wonder much that men endeavour to prove Immaterial Spirits by corporeal Arts, when as Art is not able to demonstrate Nature and her actions; for Art is but the effect of Nature, and expresses rather the variety, then the truth of natural motions; and if Art cannot do this, much less will it be able to express what is not in Nature, or what is beyond Nature; as to _trace the Visible_ (or rather Invisible) _footsteps of the divine Councel and Providence_,[1] or to demonstrate things supernatural, and which go beyond mans reach and capacity. But to return to Immaterial Spirits, that they should rule and govern infinite corporeal matter, like so many demy-Gods, by a dilating nod, and a contracting frown, and cause so many kinds and sorts of Corporeal Figures to arise, being Incorporeal themselves, is Impossible for me to conceive; for how can an Immaterial substance cause a Material corporeal substance, which has no motion in it self, to form so many several and various figures and creatures, and make so many alterations, and continue their kinds and sorts by perpetual successions of Particulars? But perchance the Immaterial substance gives corporeal matter motion. I answer, My sense and reason cannot understand, how it can give motion, unless motion be different, distinct and separable from it; nay, if it were, yet being no substance or body it self, according to your _Authors_ and others opinion, the question is, how it can be transmitted or given away to corporeal matter? Your _Author_ may say, That his Immaterial and Incorporeal spirit of Nature, having self-motion, doth form Matter into several Figures: I answer, Then that Immaterial substance must be transformed and metamorphosed into as many several figures as there are figures in Matter; or there must be as many spirits, as there are figures; but when the figures change, what doth become of the spirits? Neither can I imagine, that an Immaterial substance, being without body, can have such a great strength, as to grapple with gross, heavy, dull, and dead Matter; Certainly, in my opinion, no Angel, nor Devil, except God Impower him, would be able to move corporeal Matter, were it not self-moving, much less any Natural Spirit. But God is a Spirit, and Immovable; and if created natural Immaterial participate of that Nature, as they do of the Name, then they must be Immovable also. Your _Author, Madam_, may make many several degrees of Spirits; but certainly not I, nor I think any natural Creature else, will be able naturally to conceive them. He may say, perchance, There is such a close conjunction betwixt Body and Spirit, as I make betwixt rational, sensitive, and inanimate Matter. I answer, That these degrees are all but one Matter, and of one and the same Nature as meer Matter, different onely in degrees of purity, subtilty, and activity, whereas