容易得到的东西，是靠不住的；轻易许下的诺言，不值得信赖。

Keep your circle small and your dreams big.

程序最重要的属性是它是否实现了用户的意图。

A shortage is a sign that somebody is keeping the price artificially lower than it would be if supply and demand were allowed to operate freely.

我们必须在气候行动的紧迫需求与能源安全和经济增长的同等紧迫需求之间取得平衡。