在最低阶层中保存知识的手段对公众的重要性超过了该国所有富人的所有财产。
The preservation of the means of knowledge among the lowest ranks is of more importance to the public than all the property of all the rich men in the country.
The best way to cheer yourself up is to try to cheer somebody else up.
我感激每一个给予我的机会。
成功的关键不仅是技术，而是如何用它解决实际问题。
