I always tell my kids, 'If you're going to do something, do it well. And if you're not going to do it well, don't do it at all.'

释义：学问不论年长年幼，应该以某一方面擅长的人为师。学无先后，达者为师，体现了学问应该是一个开放的、无大小之分的领域，重在能力而非地位或者身份。

无产阶级平等要求的实际内容都是消灭阶级的要求。

The two most important days in your life are the day you are born and the day you find out why.

我早就得到了结果，但我还不知道如何得到它们。