Adaptability is the new competitive advantage in global mining.
幸福是最近两年里听到最多的词语。幸福不单只是和个人经历和价值相关，它也同样关系到我们的环境。
学习数学的唯一方法就是做数学。
The whole conviction of my life now rests upon the belief that loneliness, far from being a rare and curious phenomenon, peculiar to myself and to a few other solitary men, is the central and inevitable fact of human existence.
To solve a mathematical problem is to uncover a piece of the universal puzzle.