Algebra is applied to the clouds; the radiation of the star profits the rose; no thinker would venture to affirm that the perfume of the hawthorn is useless to the constellations. Who, then, can calculate the course of a molecule? How do we know that the creation of worlds is not determined by the fall of grains of sand? Who knows the reciprocal ebb and flow of the infinitely great and the infinitely little, the reverberations of causes in the precipices of being, and the avalanches of creation? The tiniest worm is of importance; the great is little, the little is great; everything is balanced in necessity; alarming vision for the mind. There are marvellous relations between beings and things; in that inexhaustible whole, from the sun to the grub, nothing despises the other; all have need of each other. The light does not bear away terrestrial perfumes into the azure depths, without knowing what it is doing; the night distributes stellar essences to the sleeping flowers. All birds that fly have round their leg the thread of the infinite. Germination is complicated with the bursting forth of a meteor and with the peck of a swallow cracking its egg, and it places on one level the birth of an earthworm and the advent of Socrates. Where the telescope ends, the microscope begins.