At age 19, I read a book [The Intelligent Investor] and what I'm doing today, at age 76, is running things through the same thought process I learned from the book I read at 19.
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