形式化方法的美在于它们能够提供关于系统行为的绝对保证。
Truth never damages a cause that is just.
An intelligent investing is value investing, acquiring more than you are paying for.
Sustainable infrastructure should balance economic, social and environmental benefits.
解析:吃粗粮,喝清水,弯起胳膊当枕头,这其中也有着乐趣。