Well," she said, "how can I be sure there aren't invisible....

“ Well," she said, "how can I be sure there aren't invisible people in the world? Scientists didn't believe in the mountain gorilla for hundreds of years. And now look. So if scientists can be wrong, then all of us can be wrong. I mean, what if all those invisible people ARE scientists? Think about that one. ”

Sherman Alexie

From : The Absolutely True Diary of a Part-Time Indian