Every scientific truth goes through three states: first, people say it conflicts with the Bible; next, they say it has been discovered before; lastly, they say they always believed it.
He described how, as a boy of 14, his dad had been down the mining pit, his uncle had been down the pit, his brother had been down the pit, and of course he would go down the pit.
The ancient Greeks noticed that a man with arms and legs extended described a circle, with his navel as the center.