每天都要努力变得比起床时聪明一点。忠实而出色地履行职责。你会有条不紊地出人头地，但不一定会一蹴而就......最后，如果你活得足够长，大多数人都会得到他们应得的。

The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.

幸福不是现成的，它来自于你自己的行动。

"The most dangerous kind of waste is the waste we do not recognize."

"Matching methods can be a powerful tool when randomization is not possible."