There is no shortcut in science, only down-to-earth work.
The good man is the man who, no matter how morally unworthy he has been, is moving to become better.
好人就是无论他过去在道德上多么不值得，现在正在变得更好的人。
I have always considered that the true test of a machine is its practical utility in the hands of the common laborer.
The most important thing I have learned is that the best way to get something done is to begin.