一个从不退缩，而是勇往直前的人，从不怀疑乌云会散去。

数学家研究纯数学不是因为它有用；他研究它是因为他喜欢它，他喜欢它是因为它美丽。

Now some advantages particular to this age are not to be denied. Boredom seems to have been vanquished. There is always something to do, but hasn’t this translated into a perpetual distraction in our lives.

It is because nations tend to stupidity and baseness that democracy is possible.

君子不以水为镜，而以人为镜。以水为镜，只能看到面容；以人为镜，可以知道吉凶。