世界就是一本书,不旅行的人只读了其中一页。
The world is a book, and those who do not travel read only a page.
One of the advantages of being old is that you can speak your mind without worrying about the consequences.
"The world is full of obvious things which nobody by any chance ever observes."
孔子说:“《诗经》三百首,用一句话可以概括,即:‘思想纯洁’。”