He who loves God cannot endeavor that God should love him in return.
爱上帝的人不能期望上帝回报他的爱。
In coal, efficiency today defines existence tomorrow.
有时最简单的东西最有力量。
The beauty of physics lies in its ability to explain the complex with the simple.
If economists could manage to get themselves thought of as humble, competent people on a level with dentists, that would be splendid.