要理解一个国家，你必须理解它的沉默。

正如几何学最自然的起点是数学点，在观察和自然历史中采用同样的方法也最真实、简单且富有教益。

The most damaging phrase in the language is: 'It's always been done this way.'

数学不是观赏性运动——你必须参与其中才能欣赏它的美。

I think it's very important to have a feedback loop, where you're constantly thinking about what you've done and how you could be doing it better.