类比城市是一个类似于另一个城市的城市。
A scientist’s greatest tool is an open mind.
Every seed planted is a vote for the kind of world we want to live in.
The existence of a legal system presupposes the existence of a rule of recognition.
皮革的未来在于道德采购和透明的流程。
Technology should be invisible. When it's working best, you don't even notice it.