Problems in a company are like cockroaches in the kitchen. You will never find just one
Warren BuffettBasically, the single-most important decision in evaluating a business is pricing power.
Warren BuffettThe big question about how people behave is whether they've got an Inner Scorecard or an Outer Scorecard. It helps if you can be satisfied with an Inner Scorecard.
Warren BuffettYou should be unconcerned about short-term price action when you own the securities directly, just as you were unconcerned when you owned them indirectly through BPL. I think about them as businesses, not "stocks", and if the business does all right over the long term, so will the stock.
Warren Buffett