thought the exceedingly acute theory of the origin of the planetary system, first put forth by Kant and later by Laplace, a theory of which it is scarcely possible to doubt the correctness, we see the lowest, crudest, and blindest forces of nature bound to the most rigid conformity to law, by means of their conflict for one and the same given matter, and the accidental results brought about by this produce the framework of the world, thus of the designedly prepared future dwelling-place of innumerable living beings, as a system of order and harmony, at which we are the more astonished the more distinctly and accurately we come to understand it. For example, if we see that every planet, with its present velocity, can only maintain itself exactly where it actually has its place, because if it were brought nearer to the sun it would necessarily fall into it, or if placed further from it would necessarily fly away from it; how, conversely, if we take the place as given, it can only remain there with its present velocity and no other, because if it went faster it would necessarily fly away from the sun, and if it went slower it would necessarily fall into it; that thus only one definite place is suitable to each definite velocity of a planet; and if we now see this solved by the fact that the same physical, necessary, and blindly acting cause which appointed it its place, at the same time and just by doing so, imparted to it exactly the only velocity suitable for this place, in consequence of the law of nature that a revolving body increases its velocity in proportion as its revolution becomes smaller; and, moreover, if finally we understand how endless permanence is assured to the whole system, by the fact that all the mutual disturbances of the course of the planets which unavoidably enter, must adjust themselves in time; how then it is just the irrationality of the periods of revolution of Jupiter and Saturn to each other that prevents their respective perturbations from repeating themselves at one place, whereby they would become dangerous, and brings it about that, appear-
