"Logic is the subject that has helped me most in picking stocks, if only because it taught me to identify the peculiar illogic of Wall Street. Actually Wall Street thinks just as the Greeks did. The early Greeks used to sit around for days and debate how many teeth a horse has. They thought they could figure it out just by sitting there, instead of checking the horse. A lot of investors sit around and debate whether a stock is going up, as if the financial muse will give them the answer, instead of checking the company."