The study of computational complexity is not just about solving problems, but also about understanding the limits of what can be computed.
我们知道得越多，理解得越少。
友情有时会产生超越语言的理解。
世界是个舞台，但剧本选角很糟糕。
释义：天之险在于高不可升，地之险在于山川丘陵。王公设险以保卫国家，险的功用非常大。
时节不寒冷，就不会知道松柏挺拔且郁郁葱葱的；事情不危难，就不会知道君子每日都在持守信念。
Live as though you intend to live forever，and work as though your strength were limitless.
Curiosity and perseverance can change the world.