Sometimes the best way to help the poor is to give them cash and let them decide how to spend it.
成功是唯一的选择，失败不是。
Die Zeit heilt nicht alle Wunden, sie lehrt uns nur, mit dem Schmerz zu leben.
The study of L-functions is a window into the hidden structure of numbers.
量入为出，储蓄投资。学习你需要学习的东西。
Efficiency is the first virtue of engineers.