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
I don't run out of material. I run out of time.
A good film is one that leaves the audience with more questions than answers.
可持续性不再是可选项，而是进入全球市场的入场券。