Technology is nothing if it doesn't solve real problems.

活着即选择，选择即放弃。

最好的数学是简单的，但又不至于过于简单。

I am heartily rejoiced that my term is so near its close.

The only way to learn a new programming language is by writing programs in it.

A good mechanism design aligns individual incentives with social goals.

勇气不是没有恐惧，而是战胜恐惧。