你无法回到过去改变开头，但你可以从现在开始改变结局。

You don't build a business. You build people, and people build the business.

计算的研究对于理解可计算性的极限至关重要。

真相是，我们都有能力做出极大的恶和极大的善。是我们做出的选择定义了我们。

The dead are not dead to us until we have forgotten them.