Note 1 — Chap. V.—ON THE SOUL.
Reading edition
It is certain that there exists in the universe a very subtle fluid, a substance extremely attenuated, whose source is the sun, and which pervades all other bodies, less or more, according to their nature and their consistence. Such is the soul of the world, which governs and vivifies it, and of which some portion is distributed to all the creatures in the universe.1