You have to spend some energy and effort to see the beauty of math.
The meaning of life lies in how we give it meaning.
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 prefer to buy stocks that are not widely followed by analysts.
古代的学者，为自己才学不高而担忧，就发奋学习，迎头赶上；现在的文士，为自己才学不高而羞愧，就隐满短处，避忌批评。