In the world of securities, courage becomes the supreme virtue after adequate knowledge and a tested judgment are at hand.
Benjamin GrahamThe market is a pendulum that forever swings between unsustainable optimism (which makes stocks too expensive) and unjustified pessimism (which makes them too cheap). The intelligent investor is a realist who sells to optimists and buys from pessimists.
Benjamin GrahamI am more and more impressed with the possibilities of history's repeating itself on many different counts. You don't get very far in Wall Street with the simple, convenient conclusion that a given level of prices is not too high.
Benjamin Graham