When stocks are attractive, you buy them. Sure, they can go lower. I've bought stocks at $12 that went to $2, but then they later went to $30. You just don't know when you can catch the bottom.

Democracy is the worst form of government except all those other forms that have been tried from time to time.

量子力学中的纠缠概念不仅仅是一个理论上的奇观；它对我们理解信息和因果关系有着深远的影响。

译文：做好事就会被人传遍百世，做坏事就会被人憎恶万年。赏析：人做好事自然就有美名被传颂，人做坏事自然就会受人谴责。人做好事不仅给自己积德，更是给子孙后代积福；人做坏事不仅玷污自己的名节，更会伤害到子孙后代。

创新是解决世界最紧迫问题的关键。

电影是一面反映社会灵魂的镜子。

采矿效率不仅仅是成本问题，更是减少环境影响的问题。