This page has been proofread, but needs to be validated.

were capable of syllogizing, to infer that man is a machine impelled by some external force when he walks, because it never saw any animated reptile so large.

The sagacious Kepler, for so he is called even by the most modern writers,[1] appears to have had a conception of this great truth; but as he was more an astronomer than a philosopher, he saw this truth only partially, and he rather embraced it as subservient to his own astronomical opinions, than as forming an essential part of the true theory of the universe. But from what I have seen of the writings of Kepler, I have no doubt, if he had lived in the time of the Greeks, or if he had made the study of the works of Plato and Aristotle the business of his life, he would have become an adept in, and an illustrious and zealous champion of their philosophy. Kepler then (in Harmonices Mundi, lib. 4, p. 158) says, “That he does not oppose the dogma, that there is a soul of the universe, though he shall say nothing about it in that book. He adds, that if there is such a soul, it must reside in the centre of the world, which, according to him, is the sun, and from thence by the communication of the rays of light, which are in the place of spirits in an animated body, is propagated into all the amplitude of the world.”[2] In the following passages also he confidently asserts that the earth has a soul. For he says, “ That the globe of the earth is a body such as is that of some animal; and that what its own soul is to an animal, that the sublunary nature which he investigates will be to the earth.”[3] He adds, “That he sees for the most part every thing which proceeding from the body of an animal testifies that there is a soul in it, proceeds also from the body of the earth. For as the animated body produces in the superficies of the skin hairs, thus also the earth produces [on its surface] plants and trees; and as in the former lice are generated, so in the latter the worms called erucæ, grasshoppers, and various insects and marine monsters are produced. As the animated body likewise produces tears, mucus, and the recrement of the ears, and sometimes gum from the pustules of the face, thus also the earth produces

  1. Dr. Gregory, in the 70th proposition of the first book of his Elements of Astronomy, says of Kepler, “That his archetypal ratios, geometrical concinnities, and harmonic proportions, show such a force of genius as is not to be found in any of the writers of physical astronomy before him. So that Jeremiah Horrox, a very competent judge of these matters, though a little averse to Kepler, in the beginning of his astronomical studies, after having in vain tried others, entirely falling in with Kepler’s doctrine and physical reasons, thus addresses his reader: Kepler it a person whom I may justly admire above all mortals beside: I may call him great, divine, or even something more; since Kepler is to be valued above the whole tribe of philosophers. Him alone let the bards sing of.—Him alone let the philosophers read; being satisfied of this, that he who has Kepler has all things.”

    I quote this passage, not from the justness of the encomium it contains; for it is extravagant, and by no means true; but that the reader may see what an exalted opinion some of the greatest of the moderns have had of the genius of Kepler.

  2. “Et primum quidem de anima totius universi etsi non repugno, nihil tamen hoc libro IV. dicam. Videtur enim (si est talis aliqua) in centro mundi, quod mihi sol est, residere, indeque in omnem ejus amplitudinem commercio radiorum lucis, qui sint loco spirituum in corpore animali propagari.”
  3. “Denique terræ globus tale corpus erit, quale est alicujus animalis: quodque animali est sun anima, hoc erit telluri hæc, quam quærimus, natura sublunaris.”