这个世界惟有两样东西让我们的心灵感到深深的震撼，一是我们头顶上灿烂的星空,一是我们内心崇高的道德法则。

Memory is not just a personal matter; it is also a collective one.

The past is a foreign country; they do things differently there.

You have to be willing to make mistakes; the big thing is to not make the same mistake over and over again.

质量始于果园，而非实验室。