They say, man is the microcosm... but the man of science finds every worm and beetle a microcosm in its way. It exemplifies, directly or indirectly, every physical law in the universe, though it may not be two lines long. It is not only a part, but a mirror, of the great whole.
Alton Locke, Chapter XV (p. 132), Macmillan & Co Ltd. 1862