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Every individual has a place to fill in the world and is important in some respect whether he chooses to be so or not.

I don't write to be happy, I write to be free.

可持續發展需要在創新和風險控制之間找到平衡。

戰場交鋒，即使列陣有方，但以勇猛為本；操辦喪事，即使禮節周全，但以哀痛為本；文人學士，即使學富五車，但以德行為本

What we gain by experience is more real and more solid than what we gain by reasoning.

The interplay between topology and symmetry in materials can lead to unexpected and exciting physical phenomena.