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。

"We do not write to be understood; we write in order to understand."

To understand a sentence means to understand a language.

The key to success is to get out into the store and listen to what the associates have to say. It's terribly important for everyone to get involved. The best ideas come from the floor.

城市是最伟大的建筑作品。

Man’s main task in life is to give birth to himself, to become what he potentially is. The most important product of his effort is his own personality.