One of the saddest lessons of history is this: If we've been bamboozled long enough, we tend to reject any evidence of the bamboozle. We're no longer interested in finding out the truth. The bamboozle has captured us. it is simply too painful to acknowledge -- even to ourselves -- that we've been so credulous. (So the old bamboozles tend to persist as the new bamboozles rise.) -- Carl Sagan, "The Fine Art of Baloney Detection," Parade, February 1, 1987