家纵贫寒，也须留读书种子；人虽富贵，不可忘稼穑艰辛。
译文：家境纵然贫寒，也要让孩子读书学习；人即使飞黄腾达了，也不能忘记耕种劳作的艰辛。赏析：积金千两，不如明解经书。有田不耕仓廪虚，有书不读子孙愚。从古至今，无数的先贤都在告诉我们，读书是有很多好处的。贫穷不忘恩，富贵不忘本。
幸福不是现成的东西，它来自于你自己的行动。
You are the artist of your own life. Don't hand the paintbrush to anyone else.
It seemed the world was divided into good and bad people. The good ones slept better ... while the bad ones seemed to enjoy the waking hours much more.
The hardest part of designing a system is deciding what to build.
函数的概念在数学中是基础的，而λ演算提供了一种形式化这一概念的方法。