"Another topic is derived from things which are thought to happen but are incredible, because it would never have been thought so, if they had not happened or almost happened. And further, these things are even more likely to be true; for we only believe in that which is, or that which is probable: if then a thing is incredible and not probable, it will be true; for it is not because it is probable and credible that we think it true." Aristotle, Rhetoric 2:23 (http://www.perseus.tufts.edu/hopper/text?doc=Perseus:text:19...)