Sustainable development is not a slogan but a concept that must be practiced. We must keep the land forever vibrant.
市场经济的本质是自由竞争，而竞争的本质是自由进入。
"I don't believe in happy endings, but I do believe in happy travels, because ultimately, you die at a very young age, or you live long enough to watch your friends die."
自守形式的研究是数学对称性之美的反映。