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.
Phenomena are the outer expressions of hidden essences.
You see, in the final analysis, it is between you and God; It is never between you and them anyway。
循环经济不是理想，只要我们致力于此，它是可以实现的现实。
每一部电影都是一次旅程，每一次旅程都是一部电影。
The value of a psychological concept is in its life application.