Wesco had a market capitalization of $40 million when we bought it [in the early 1970s]. It's $2 billion now. It's been a long slog to a perfectly respectable outcome - not as good as Berkshire Hathaway or Microsoft, but there's always someone in life who's done better.

In the corporate world, if you have analysts, due diligence, and no horse sense, you've just described hell.

You don't have to have perfect wisdom to get very rich - just a bit better than average over a long period of time.

Black-Scholes works for short-term options, but if it's a long-term option and you think you know something [about the underlying asset], it's insane to use Black-Scholes.

In business we often find that the winning system goes almost ridiculously far in maximizing and or minimizing one or a few variables - like the discount warehouses of Costco.

If you can get good at destroying your own wrong ideas, that is a great gift.

Let me know what your problem is, and I will try to make it more difficult for you.