PHYSIOLOGICAL
CONSIDERATIONS
Touching

The experiments wont to be employed to evince either the IV Peripatetick Elements, or the III Chymical Principles of Mixt Bodies.


Part of the First Dialogue.


Perceive that divers of my Friends have thought it very strange to hear me speak so irresolvedly, as I have been wont to do, concerning those things which some take to be the Elements, and others to be the Principles of all mixt Bodies. But I blush not to acknowledge that I much lesse scruple to confess that I Doubt, when I do so, then to profess that I Know what I do not: And I should have much stronger Expectations then I dare yet entertain, to see Philosophy solidly establish’t, if men would more carefully distinguish those things that they know, from those that they ignore or do but think, and then explicate clearly the things they conceive they understand, acknowledge ingenuously what it is they ignore, and profess so candidly their Doubts, that the industry of intelligent persons might be set on work to make further enquiries, and the easiness of less discerning Men might not be impos’d on. But because a more particular accompt will probably be expected of my unsatisfyedness not only with the Peripatetick, but with the Chymical Doctrine of the Primitive Ingredients of Bodies: It may possibly serve to satisfy others of the excusableness of my disatisfaction to peruse the ensuing Relation of what passed a while since at a meeting of persons of several opinions, in a place that need not here be named; where the subject whereof we have been speaking, was amply and variously discours’d of.

It was on one of the fairest dayes of this Summer that the inquisitive Eleutherius came to invite me to make a visit with him to his friend Carneades. I readily consented to this motion, telling him that if he would but permit me to go first and make an excuse at a place not far off, where I had at that hour appointed to meet, but not about a business either of moment, or that could not well admit of a delay, I would presently wait on him, because of my knowing Carneades to be so conversant with nature and with Furnaces, and so unconfin’d to vulgar Opinions, that he would probably by some ingenious Paradox or other, give our mindes at least a pleasing Exercise, and perhaps enrich them with some solid instruction. Eleutherius then first going with me to the place where my Apology was to be made, I accompanied him to the lodging of Carneades, where when we were come, we were told by the Servants, that he was retired with a couple of Friends (whose names they also told us) to one of the Arbours in his Garden, to enjoy under its coole shades a delightful protection from the yet troublesome heat of the Sun.

Eleutherius being perfectly acquainted with that Garden immediately led me to the Arbour, and relying on the intimate familiarity that had been long cherish’d betwixt him and Carneades; in spight of my Reluctancy to what might look like an intrusion upon his privacy, drawing me by the hand, he abruptly entered the Arbour, where we found Carneades, Philoponus, and Themistius, sitting close about a little round Table, on which besides paper, pen, and inke, there lay two or three open Books; Carneades appeared not at all troubled at this surprise, but rising from the Table, received his Friend with open looks and armes, and welcoming me also with his wonted freedom and civility, invited us to rest our selves by him, which, as soon as we had exchanged with his two Friends (who were ours also) the civilities accustomed on such occasions, we did. And he presently after we had seated our selves, shutting the Books that lay open, and turning to us with a smiling countenance seemed ready to begin some such unconcerning discourse as is wont to pass or rather waste the time in promiscuous companies.

But Eleutherius guessing at what he meant to do, prevented him by telling him, I perceive Carneades by the books that you have been now shutting, and much more by the posture wherein I found Persons [qualifi’d] to discourse of serious matters; and so accustom’d to do it, that you three were before our coming, engag’d in some Philosophical conference, which I hope you will either prosecute, and allow us to be partakers of, in recompence of the freedome we have us’d in presuming to surprise you, or else give us leave to repair the injury we should otherwise do you, by leaving you to the freedom we have interrupted, and punishing our selves for our boldness by depriving our selves of the happiness of your company. With these last words he and I rose up, as if we meant to be gone, But Carneades suddenly laying hold on his arme, and stopping him by it, smileingly told him, We are not so forward to lose good company as you seem to imagine; especially since you are pleas’d to desire to be present at what we shall say, about such a Subject as that You found us considering. For that, being the number of the Elements, Principles, or Materiall Ingredients of Bodies, is an enquiry whose truth is of that Importance, and of that Difficulty, that it may as well deserve as require to be searched into by such skilfull Indagators of Nature as your selves. And therefore we sent to invite the bold and acute Leucippus to lend us some light by his Atomical Paradox, upon which we expected such pregnant hints, that ’twas not without a great deal of trouble that we had lately word brought us that he was not to be found; and we had likewise begg’d the Assistance of your presence and thoughts, had not the messenger we employ’d to Leucippus inform’d us, that as he was going, he saw you both pass by towards another part of the Town; And this frustrated expectation of Leucippus his company, who told me but last night that he would be ready to give me a meeting where I pleas’d to day, having very long suspended our conference about the freshly mention’d Subject, it was so newly begun when you came in, that we shall scarce need to repeat any thing to acquaint you with what has pass’d betwixt us before your arrival, so that I cannot but look upon it as a fortunate Accident that you should come so seasonably, to be not hearers alone, but we hope Interlocutors at our conference. For we shall not only allow of your presence at it, but desire your Assistance in it; which I adde both for other reasons, and because though these learned Gentlemen (sayes he, turning to his two friends) need not fear to discourse before any Auditory, provided it be intelligent enough to understand them, yet for my part (continues he with a new smile,) I shall not dare to vent my unpremeditated thoughts before two such Criticks, unless by promising to take your turnes of speaking, You will allow me mine of quarrelling, with what has been said. He and his friends added divers things to convince us that they were both desirous that we should hear them, and resolved against our doing so, unless we allowed them sometimes to hear us. Elutherius after having a while fruitlesly endeavoured to obtain leave to be silent promis’d he would not be so alwayes, provided that he were permitted according to the freedom of his Genious and Principles to side with one of them in the managing of one Argument, and, if he saw cause, with his Antagonist, in the Prosecution of another, without being confin’d to stick to any one party or Opinion, which was after some debate accorded him. But I conscious to my own Disability’s told them resolutely that I was as much more willing as more fit to be a hearer then a speaker, among such knowing Persons, and on so abstruse a Subject. And that therefore I beseeched them without necessitating me to proclaim my weaknesses, to allow me to lessen them by being a silent Auditor of their Discourses: to suffer me to be at which I could present them no motive, save that their instructions would make them in me a more intelligent Admirer. I added, that I desir’d not to be idle whilst they were imploy’d, but would if they pleas’d, by writing down in short hand what should be delivered, preserve Discourses that I knew would merit to be lasting. At first Carneades and his two friends utterly rejected this motion; and all that my Resoluteness to make use of my ears, not tongue, at their debates, could do, was to make them acquiesce in the Proposition of Eleutherius, who thinking himself concern’d, because he brought me thither, to afford me some faint assistance, was content that I should register their Arguments, that I might be the better able after the conclusion of their conference to give them my sence upon the Subject of it, (The number of Elements or Principles:) which he promis’d I should do at the end of the present Debates, if time would permit, or else at our next meeting. And this being by him undertaken in my name, though without my consent, the company would by no means receive my Protestation against it, but casting, all at once, their eyes on Carneades, they did by that and their unanimous silence, invite him to begin; which (after a short pause, during which he turn’d himself to Eleutherius and me) he did in this manner.