20. Once upon a time in the history of the universe, lost among the myriad worlds, cosmic matter was condensed into the form of an immense nebula. This nebula was animated by the universal laws which govern matter. By virtue of these laws, and notably by the molecular force of attraction, it took the form of a spheroid, the only one which can originally be taken by a mass of isolated matter in space.
The circular movement, produced by gravitation exactly equal in all the molecular zones toward the center, soon modified the primitive sphere in order to conduct it from movement to movement toward the lenticular form. We speak of the whole of the nebula.