地理学是研究地方的科学。它的视野宏大，视角全景。
孔子说：“端木赐啊！你以为我是一个博学强记的人吗？”子贡答道：“是的，不是这样吗？”孔子说：“不是的，我是用一个基本道理把它们贯穿起来的。”
The deepest principle in human nature is the craving to be appreciated.
The study of computational complexity is not just about solving problems, but also about understanding the limits of what can be computed.