The discovery of topological insulators has opened up a new frontier in condensed matter physics, where the interplay between topology and symmetry leads to novel quantum states of matter.

个人必须从他的文化提供的材料中塑造自己。

别让仇恨者阻止你做你的事。

Never spend your money before you have it.

人工智能的关键一直是表示法。