"The truth is rarely pure and never simple."

孔子说：“吃粗粮、喝白水、弯着胳膊当枕头，乐也在其中了！缺少仁义的富贵，对我来说，就象天上的浮云。”

I did not write half of what I saw, for I knew I would not be believed.

"The scientist is not a person who gives the right answers, he's one who asks the right questions."

筹划洋人的事情一定要先了解洋人的情况，要了解洋人的情况一定知道洋人的情况。