The beauty of topological insulators lies in their robustness; their surface states are protected against disorder and imperfections.

我对人类的状况和是什么让人们行动感兴趣。

只为自己活着的人，不值得活在世上。

It is hard to imagine a more stupid or more dangerous way of making decisions than by putting those decisions in the hands of people who pay no price for being wrong.

最好的设计源于理解使用者的需求。