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 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.
我并非一无所有，我拥有自由。
The best ideas often come from the most unexpected places.
The concept of law is a complex one, and it is not easy to define.
The most dangerous phrase in business is 'We've always done it this way.'
The periodic table is not just a chart; it's a map of endless possibilities.