Carson Mccullers said this quote

Blount sat down to the table and leaned over close to Singer. There are those who know and those who don't know. And for every ten thousand who don't know there's only one who knows. That's the miracle of all time - the fact that these millions know so much but don't know this. It's like in the fifteenth century when everybody believed the world was flat and only Columbus and a few other fellows knew the truth. But it's different in that it took talent to figure that the earth is round. While the truth is so obvious it's a miracle of all history that people don't know.