Infrastructure must serve people, not just economies.
友情有时会产生超越语言的理解。
I don’t count my sit-ups, I only start counting when it starts hurting.
运用神机的人,众人不知道他的功劳,在明处争斗不休的人,众人却都知道他。 
The arithmetic of modular forms is a gateway to understanding higher-dimensional objects.