POSIDONIUS.—It is quite the reverse. I see not only a difficulty, but even an impossibility in comprehending how matter can have infinite designs; but I see no difficulty in admitting an intelligent being, who governs this matter by his infinite wisdom, and by his almighty will.
LUCRETIUS.—What? is it because your mind cannot comprehend one thing that you are to suppose another? Is it because you do not understand the secret springs, and admirable contrivances, by which nature disposed itself into planets, suns, and animals, that you have recourse to another being?
POSIDONIUS.—No; I have not recourse to a god, because I cannot comprehend nature; but I plainly perceive that nature needs a supreme intelligence; and this reason alone would to me be a sufficient proof of a deity had I no other.
LUCRETIUS.—And what if this matter possessed intelligence of itself?
POSIDONIUS.—It is plain to me that it does not possess it.
LUCRETIUS.—And to me it is plain that it does possess it, since I see bodies like you and me reason.
POSIDONIUS.—If matter possesses, of itself, the faculty of thinking, you must affirm that it possesses it necessarily and independently: but if this property be essential to matter, it must have it at all times and in all places; for whatever is essential to a thing can never be separated from it. A bit of clay, and even the vilest excrement would think; but sure you will not say that dung thinks. Thought, therefore, is not an essential attribute of matter.
LUCRETIUS.—Your reasoning is a mere sophism. I hold motion to be essential to matter; and yet this dung, or that piece of clay, is not actually in motion; but they will be so when they are impelled by some other body. In like manner thought will not be an attribute of a body, except when that body is organized for thinking.
POSIDONIUS.—Your error proceeds from this, that you always suppose the point in question. You do not reflect that, in order to organize a body, to make it a man, to render it a thinking being, there must previously be thought, there must be a fixed design. But you cannot admit such a thing as design before the only beings in this world capable of design are formed; you cannot admit thought before the only beings capable of thinking exist. You likewise suppose the point in question, when you say that motion is necessary to matter; for what is absolutely necessary always exists, as extension, for instance, exists always and in every part of matter; but motion does not exist always. The pyramids of Egypt are not surely in motion. A subtile matter perhaps, may penetrate between the stones which compose the pyramids; but the body of the pyramid is immovable. Motion, therefore, is not essential to matter, but is communicated to it by a foreign cause, in the same manner as thought is to men. Hence it follows that there must be a powerful and intelligent being, who communicates motion, life, and thought to his creatures.
LUCRETIUS.—I can easily answer your objections by saying that there have always been motion and intelligence in the world. This motion and this intelligence have been distributed at all times according to the laws of nature. Matter being eternal, it must necessarily have been in some order; but it could not be put into any order without thought and motion; and therefore thought and motion must have always been inherent in it.