It is to the internal spirit also that the spherical form of the worlds is due. The so-called mountains of the earth do not in the least detract from its spherical form. Bruno anticipated modern science in his discovery or intuition that the real mountains are not those we are accustomed to call such, but immense tracts of country,--the whole of France, for example. "I find the whole country of France to be one mountain, which rises gradually from the North Sea to Auvergne, where is its summit, marked on the west by the Pyrenees, where the Garonne flows, on the east by the Rhone, on the south by the Mediterranean Sea."[377] The whole earth is, however, as smooth in reality as is to us the pumice stone, which to the ant seems furrowed with mountains and valleys. It is on teleological grounds that Bruno accounts for this sphericity. Composite things are preserved through the harmony and union of their parts, while decay arises from dissolution. But such harmony and union are best secured by the spherical form: towards this form, then, every soul aspires in the moulding of its body. The most perfect animals, the stars, having fewer limitations, have the greater advantages; being almost independent, free, self-sufficient, they are most closely united in themselves, _i.e._ tend most nearly to the purely spherical form.[378] However perfect they are, the stars are yet of mortal stuff. "You may say if you will that the worlds change and decay in old age, or that the earth seems to grow grey with years, and that all the great animals of the universe perish like the small, for they change, decay, dissolve. Matter, weary of old forms, eagerly snatches after new, for it desires to become all things, and to resemble, as far as may be, all being." The efflux and influx of atomic matter into the great bodies is continuous, and this is the only kind of motion which is unceasing.[379] "As the conflux of native matter is greater, so the bodies grow more and more, and increase up to a certain limit, on touching which they grow weary and become subject to a contrary order; as about the seed atoms are gathered and added continuously until the body and its limbs reach their maturity, when the same parts are cast out from the centre, and the breaking up of the composite is presented to our eyes." Hence there are atoms innumerable roaming through the void, while infinite changes succeed one another in bodies. Those in one region receive the atoms repulsed from another: there is no danger of their straying infinitely without reaching a goal, for everywhere are great bodies to receive what is expelled from other stars. Composite as the worlds are,--capable, therefore, of dissolution and destruction,--yet, as Timaeus had suggested, the power and providence of the divine purpose may maintain them eternally as they are. CHAPTER V[380] THE LAST AND THE LEAST THINGS: ATOMS AND SOUL-MONADS