智者从敌人那里学到的比愚者从朋友那里学到的还要多。
I am not trying to imitate a photograph; I am trying to make one.
墨翟我上没有侍奉国君的差事,下没有耕田种地的艰难,我怎么敢放弃读书呢? 
I do not lack the courage to think a thought all the way through, and thus far I have encountered no thought that I have feared.
如果你有一个好主意,并且你做得对,它就会成功。