Complexity in unity is another sign of superiority. The total earth's complexity far exceeds that of any organism, for she includes all our organisms in herself, along with an infinite number of things that our organisms fail to include. Yet how simple and massive are the phases of her own proper life! As the total bearing of any animal is sedate and tranquil compared with the agitation of its blood corpuscles, so is the earth a sedate and tranquil being compared with the animals whom she supports. To develop from within, instead of being fashioned from without, is also counted as something superior in men's eyes. An egg is a higher style of being than a piece of clay which an external modeler makes into the image of a bird. Well, the earth's history develops from within. It is like that of a wonderful egg which the sun's heat, like that of a mother-hen, has stimulated to its cycles of evolutionary change. Individuality of type, and difference from other beings of its type, is another mark of rank. The earth differs from every other planet, and as a class planetary beings are extraordinarily distinct from other beings. Long ago the earth was called an animal; but a planet is a higher class of being than either man or animal; not only quantitatively greater, like a vaster and more awkward whale or elephant, but a being whose enormous size requires an altogether different plan of life. Our animal organization comes from our inferiority. Our need of moving to and fro, of stretching our limbs and bending our bodies, shows only our defect. What are our legs but crutches, by means of which, with restless efforts, we go hunting after the things we have not inside of ourselves. But the earth is no such cripple; why should she who already possesses within herself the things we so painfully pursue, have limbs analogous to ours? Shall she mimic a small part of herself? What need has she of arms, with nothing to reach for? of a neck, with no head to carry? of eyes or nose when she finds her way through space without either, and has the millions of eyes of all her animals to guide their movements on her surface, and all their noses to smell the flowers that grow? For, as we are ourselves a part of the earth, so our organs are her organs. She is, as it were, eye and ear over her whole extent--all that we see and hear in separation she sees and hears at once. She brings forth living beings of countless kinds upon her surface, and their multitudinous conscious relations with each other she takes up into her higher and more general conscious life.