I like to have  a man's knowledge comprehend  more than one class of topics, one row of shelves. I  like a man who likes to see a fine barn as well as a good tragedy.   
——Ralph Waldo Emerson,  American thinker 　

我希望人的知识不限于一类题目、一排书架。我既喜欢看一个好谷仓，也喜欢欣赏一出好悲剧。   
——美国思想家、爱默生。R. W.