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

To write is to descend into the abyss of oneself.

可持续性不是一种选择，而是任何负责任企业的唯一前进道路。

The past is a place we can visit but never stay.

心是指南针，但并不总指向北方。

最有效的调试工具仍然是仔细的思考，再加上明智地放置的打印语句。