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国君若真的希望人口多而不希望人口少的话,如果要蓄养姬妾,就不能不节制。[说明∶老百姓也得有老婆生孩子,别抢人家的老婆] 
I think prime numbers are like life. They are very logical but you could never work out the rules, even if you spent all your time thinking about them.
You are not the opinion of somebody who doesn’t know you or care about you.
最好的投资是那些为股东和社会都创造价值的投资。
The coal research is just as important as the DNA work.