发愤研究学问，常常忘记吃饭，一旦有所收获便又高兴地忘记了忧愁，连自己的渐趋衰老也没有感觉到。

Consciousness is the arena where life's battles are fought.

People of the same trade seldom meet together， even for merriment and diversion， but the conversation ends in a conspiracy against the public， or in some contrivance to raise prices.

翻译：文字不能完整地表达语言，语言不能完整地表达心意。

编写程序的最好方法是编写它。