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CHAP. I. What is Nature?
SInce then, our intent and purpose is to consider and treat of Naturall philosophie, I thinke it needfull, to shew first, what is Nature: for absurd it were, to enterprise a discourse of Natu∣rall things, and meane-while to be ignorant of Nature and the power thereof. Nature then (ac∣cording to the opinion of Aristotle) is the beginning of motion and rest, in that thing wherein it is properly and principally, not by accident: for all things to be seene (which are done neither by fortune nor by necessitie, and are not divine, nor have any such efficient cause) be called Na∣turall, [ 10] as having a proper and peculiar nature of their owne; as the earth, fire, water, aire, plants, and living creatures. Moreover, those other things which we do see ordinarily engendered, as raine, haile, lightning, presteres, winds, and such like; for all these have a certeine beginning; and every one of them was not so for ever, and from all eternitie, but did proceed from some originall: likewise, living creatures and plants, have a beginning of their motion; and this first principle, is Nature: the beginning not of motion onely, but also of rest and quiet; for whatso∣ever hath had a beginning of motion, the same also may have an end: and for this cause, Nature is the beginning aswell of rest as of moving.