The friendly Powers again, as Summer-heat, the Sun, are Gods. The empire of this Universe is divided between these two; they dwell apart, in perennial internecine feud.
 Thomas Carlyle, On Heroes, Hero-Worship, and The Heroic in History (1841). copy citation

Context

“What we now lecture of as Science, they wondered at, and fell down in awe before, as Religion The dark hostile Powers of Nature they figure to themselves as "Jotuns," Giants, huge shaggy beings of a demonic character. Frost, Fire, Sea-tempest; these are Jotuns. The friendly Powers again, as Summer-heat, the Sun, are Gods. The empire of this Universe is divided between these two; they dwell apart, in perennial internecine feud. The Gods dwell above in Asgard, the Garden of the Asen, or Divinities; Jotunheim, a distant dark chaotic land, is the home of the Jotuns.
Curious all this; and not idle or inane, if we will look at the foundation of it!” source