The 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.
忧虑是一种积极的心理活动,可以开阔人的思路。如果能正确引导这一情绪,你就可以洞察任何形势下的负面风险,并采取行动规避这些风险。