The Description of a New World, Called the Blazing-World

Others again said, This opinion could not stand with reason; for Fire being a destroyer of all things, the Sun-Stone after this manner would burn up all the near adjoining Bodies: Besides, said they, Fire cannot subsist without fuel; and the Sun-Stone having nothing to feed on, would in a short time consume it self; wherefore they thought it more probable that the Sun was not actually hot, but onely by the reflection of its light; so that its heat was an effect of its light, both being immaterial. But this opinion again was laught at by others, and rejected as ridiculous, who thought it impossible that one immaterial should produce another; and believed that both the light and heat of the Sun proceeded from a swift Circular motion of the Æthereal Globules, which by their striking upon the Optick nerve, caused light, and their motion produced heat: But neither would this opinion hold; for, said some, then it would follow, that the sight of Animals is the cause of light; and that, were there no eyes, there would be no light; which was against all sense and reason. Thus they argued concerning the heat and light of the Sun; but, which is remarkable, none did say, that the Sun was a Globous fluid body, and had a swift Circular motion; but all agreed, It was fixt and firm like a Center, and therefore they generally called it the Sun-Stone.