Sustainability isn't a choice anymore; it's a necessity for any business that wants to thrive in the long term.

个人行为并非为了最大化独立存在的效用函数。

I have come to believe that a great teacher is a great artist and that there are as few as there are any other great artists. Teaching might even be the greatest of the arts since the medium is the human mind and spirit.

Physics is not just about solving problems, it's about understanding the nature of reality.