That is the way of the scientist. He will spend thirty years in building up a mountain range of facts with the intent to prove a certain theory; then he is so happy with his achievement that as a rule he overlooks the main chief fact of all-that all his accumulation proves an entirely different thing.
Mark Twainisn't so astonishing, the number of things that I can remember, as the number of things I can remember that aren't so.
Mark Twain