“For nature is a perpetual circulatory worker, generating fluids out of solids, and solids out of fluids, fixed things out of volatile and volatile out of fixed, subtle out of gross and gross out of subtle, some things to ascend and make terrestrial juices, Rivers and Atmosphere; and by consequence others to descend…”
An Hypothesis Explaining the Properties of Light’’ (1675); TCN p72 — Isaac Newton (1642–1727)
