[In picking stocks] You really have to know a lot about business. You have to know a lot about competitive advantage. You have to know a lot about the maintainability of competitive advantage. You have to have a mind that quantifies things in terms of value. And you have to be able to compare those values with other values available in the stock market.
History knows no scruples and no hesitation. Inert and unerring, she flows towards her goal. At every bend in her course she leaves the mud which she carries and the corpses of the drowned.