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.

True intelligence must be able to understand, reason, and make decisions.

对感受者而言，生活是悲剧；对思考者而言，生活是喜剧。

深度学习是解决复杂问题的强大工具。