The beauty of topological insulators lies in their robustness; their surface states are protected by symmetry and topology, making them immune to certain types of disorder.
拓扑绝缘体的美在于它们的鲁棒性；它们的表面态受到对称性和拓扑的保护，使它们对某些类型的无序免疫。
The greatest danger is not that we will lose our way, but that we will become content with where we are.
It is a capital mistake to theorize before one has data.
我对角色的个人命运不感兴趣，而是对产生这种命运的社会条件感兴趣。
Ethics is the general enquiry into what is good.