优质工艺和道德生产可以共存；它们并不相互排斥。

在策划别人的事时好像在策划自己的事，则思虑能周全。在策划自己的事时如同策划别人的事一样，则旁人能看清一切。

我已经尽全力了，但我不可能是个完美的人。我无法作到既英俊，又能唱绕舌歌，又能得分，还能罚球罚得准。

The past is not dead. It is not even past.

Children have real understanding only of that which they invent themselves, and each time that we try to teach them something too quickly, we keep them from reinventing it themselves.