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可持续性不是一种选择;它是能源未来的必要条件。
热闹的场合可以锻炼心境,安静可以养心,坐时可以守心,行动时可以考验心灵,言时省心,动时制心。
The study of automorphic forms is a testament to the power of symmetry in mathematics.
I don't compete with anyone but myself. My goal is to be better than I was yesterday.
我们不是从祖先那里继承了海洋;我们是从子孙那里借来的。