對于非禮的事，上等到的士人根本不想；對于非禮的事，中等的士人從來不說；對于非禮的事，下等的士人緊閉門戶。
不要僅僅追求成功，要追求意義。
"Understanding the limits of computation is as important as expanding its capabilities."
The more you learn, the more you realize how little you know.