Act as if what you do makes a difference. It does.

数学不知道种族或地理界限；对于数学来说，文化世界是一个国家。

信仰和知识的最终基础是对上帝的信心。

"Every story is a journey, and every journey changes the traveler."

采矿业的可持续性不是一种选择，而是我们未来的必然需求。

I have always considered that the true test of a machine is its practical utility in the hands of the common laborer.