拓扑绝缘体的美在于它们的鲁棒性；它们的表面态受到保护，不受无序和缺陷的影响。
The beauty of topological insulators lies in their robustness; their surface states are protected against disorder and imperfections.
The higher your energy level, the more efficient your body. The more efficient your body, the better you feel and the more you will use your talent to produce outstanding results.
我不是那种会让对我承诺的爱减少的人。