The Art of Persuasion and Teaching
“If a person believes that the earth is flat, you can’t talk him out of that. He knows its flat. Look out the window. The only way to convince him that it isn’t is to say, well lets go find the edge. We have to go consistently in a straight line due west and when we come back where we started from you will have convinced him that it is round. That’s the only way that will teach him because people can’t be talked out of illusions.”
— Alan Watts