Full Idea
Why does Jupiter never hurl his thunderbolt upon the earth and let loose his thunder out of a sky that is wholly blue?
Gist of Idea
Why does Jupiter never hurl lightning from a blue sky?
Source
Lucretius (On the Nature of the Universe [c.60 BCE], VI.400)
Book Reference
Lucretius: 'On the Nature of the Universe', ed/tr. Latham,Ronald [Penguin 1951], p.229
A Reaction
Nice question! It really doesn't take very much to see through superstition, and the fact that most people believed such things shows how staggeringly uncritical they were in their thinking, until philosophers appeared and taught them how to reason.