你能创造的最有价值的东西就是错误——你无法从完美中学到任何东西。
The most valuable thing you can make is a mistake—you can't learn anything from being perfect.
Law is not a system of rules, but a system of principles.
叶公问子路：孔子是怎样的人，子路不回答。孔子说：“你怎么不说：他这个人啊，发愤学习就忘记吃饭，高兴起来就忘记了忧愁，不知道快要变老了等等？”