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可持续性不再是可选项,而是生存的必需品。
Nobody cares if you can't dance well. Just get up and dance. Great dancers are great because of their passion.
Life would be infinitely happier if we could only be born at the age of eighty and gradually approach eighteen.   
The beauty of mathematics lies in its ability to describe the world in a language that is universal.
逝者是我们的老师,如果我们懂得倾听。