"That's no such knotty Difficulty, when one knows the perfect Circle and the delicate Concatenation of the Elements: For if you attentively consider the Slime which joines the Earth and Water together in Marriage, you'll find that it is neither Earth nor Water; but the Mediator betwixt these Two Enemies. In the same manner, the Water and Air reciprocally send a Mist, that dives into the Humours of both, to negotiate a Peace betwixt them; and the Air is reconciled to the Fire, by means of an interposing Exhalation which Unites them." I believe he would have proceeded in his Discourse, had they not brought us our Victuals; and seeing we were a hungry, I stopt my Ears to his discourse, and opened my Stomack to the Food they gave us. I remember another time, when we were upon our Philosophy, for neither of us took pleasure to Discourse of mean things: "I am vexed," said he, "to see a Wit of your stamp infected with the Errors of the Vulgar. You must know then, in spight of the Pedantry of _Aristotle_ with which your Schools in _France_ still ring, That every thing is in every thing; that's to say, for instance, That in the Water there is Fire, in the Fire Water, in the Air Earth, and in the Earth Air: Though that Opinion makes Scholars open their Eyes as big as Sawcers, yet it is easier to prove it, than perswade it. For I ask them, in the first place, if Water does not breed Filth: If they deny it, let them dig a Pit, fill it with meer Element,[4] and to prevent all blind Objections let them if they please strain it through a Strainer, and I'll oblige my self, in case they find no Filth therein within a certain time, to drink up all the Water they have poured into it: But if they find Filth, as I make no doubt on't; it is a convincing Argument that there is both Salt and Fire there. Consequentially now, to find Water in Fire; I take it to be no difficult Task. For let them chuse Fire, even that which is most abstracted from Matter, as Comets are, there is a great deal in them still; seeing if that Unctuous Humour, whereof they are engendered, being reduced to a Sulphur by the heat of the Antiperistasis which kindles them, did not find a curb of its Violence in the humid Cold that qualifies and resists it, it would spend it self in a trice like Lightning. Now that there is Air in the Earth, they will not deny it; or otherwise they have never heard of the terrible Earth-quakes, that have so often shaken the Mountains of _Sicily_: Besides, the Earth is full of Pores, even to the least grains of Sand that com[pose] it. Nevertheless no Man hath as yet said, that these Hollows were filled with _Vacuity_: It will not be taken amiss then, I hope, if the Air takes up its quarters there. It remains to be proved, that there is Earth in the Air; but I think it scarcely worth my pains, seeing you are convinced of it, as often as you see such numberless Legions of Atomes fall upon your heads, as even stiffle Arithmetick.