除非一个人绝对诚实地问自己在类似情况下是否可能做出同样的事，否则他不应评判他人。
In the end, we will remember not the words of our enemies, but the silence of our friends.
Sleep is good, death is better; but of course, the best thing would to have never been born at all.
乳制品行业关系到国民健康，我们必须以最高的标准要求自己。
数学的本质不是使简单的事物复杂化，而是使复杂的事物简单化。