The Fallacy of hope:
"All who have dealt in the market, even to a limited extent, realize how hard it is to overcome certain stubbornness of belief when we have commitments. Within us we know that we have a very slim chance of being right, and still we persist in magnifying the things in our favor and minimizing those which are not. We see some people who, the more uncertain they get, the more vociferously assertive they become in the certainty of their position. They are keeping up their courage with their voice, like the boy who whistled when he passed the graveyard on his way home at night. Needless to say this is all useless. The market cannot be overcome by our will-power, but must be followed, or rather foreseen, by our reasoning powers. We must not blind or clog up our reason with our commitments."
Joseph Kerr, Jr.