When people tell me they've learned from experience, I tell them the trick is to learn from other people's experience.
Warren BuffettIf we start deciding, based on guesses or emotions, whether we will or won't participate in a business where we should have some long run edge, we're in trouble.
Warren BuffettTake the probability of loss times the amount of possible loss from the probability of gain times the amount of possible gain. That is what we're trying to do. It's imperfect, but that's what it's all about.
Warren Buffett