进步的方法是承认无知。
The way to make progress is to acknowledge ignorance.
真相并不总是表面看起来那样,有时不知道反而更好。
The line between good and evil is often blurred.
The past is a foreign country; they do things differently there.
The problem of quality management is not what people don't know about it. The problem is what they think they do know.
The world is full of people who will help you manufacture tornados so you can later claim to have survived them.
你知道得越多,你就越意识到你不知道的越多。