最重要的是保持思考，保持质疑。

基础设施的未来在于可持续性和智能技术。

The only meaningful way to study learning is through objective measurement.

世界历史可以这样总结:强国总行不义。等到他们醒悟了,他们不已经不再强了。

过去总是以我们现在的生存方式呈现着。

I strongly believe that missionaries make better products. They care more. For a missionary， it's not just about the business. There has to be a business， and the business has to make sense， but that's not why you do it. You do it because you have something meaningful that motivates you.

I don’t believe in an afterlife. This is it. Make the most of it.

"The best way to learn mathematics is to do mathematics."