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.

股市是一个将钱从急躁的人转移到耐心的人的工具。

The world is a canvas, and we are all artists in our own way.

工商业和农业一样都是国家的根本

The greatest journeys are those taken within.

如果你无法简单地解释它，说明你理解得还不够透彻。