经济出自学问，经济方有本源；心性见之事功，心性方为圆满。舍事功更无学问，求性道不外文章。
经国济世之道来自广博的学问，它才有不竭的源泉；修心养性之道体现在建功立业上，它才算得上圆满。除了建功立业之外，世上没有真正的学问；要寻求修心养性之道，必须到圣贤的文章中去找
The coal industry must unswervingly follow the path of safe, efficient, clean, and low-carbon development.
The mathematician does not study pure mathematics because it is useful; he studies it because he delights in it and he delights in it because it is beautiful.
I am not interested in the average, I am interested in the extreme.
I think of a hero as someone who understands the degree of responsibility that comes with his freedom.