In manufacturing, efficiency and environmental responsibility must go hand in hand.
I like to think about architecture as a kind of landscape.
穷人并非不理性；他们和任何人一样理性，但他们在非常不同的约束下行动。
Lisp is worth learning for the profound enlightenment experience you will have when you finally get it; that experience will make you a better programmer for the rest of your days, even if you never actually use Lisp itself a lot.
移动的手指在书写；一旦写下，便继续前行：无论是你的虔诚还是智慧，都无法引诱它回来取消半行，你的泪水也无法洗去一个字。