我认为要教小狗学会老把戏也难。
（俗语说，老狗学不会新把戏）对于伯克希尔子公司那些高龄经理，巴菲特评论说
人们会把自己认为正确的事情强加给他人。
Don’t be the smartest person in the room. Hangout with， and learn from， people smarter than yourself. Even better， find smart people who will disagree with you.
Legal rules are not merely commands backed by threats; they are also rules that confer powers and create obligations.
