人们思考得越少,他们说得越多。
中心地的空间分布遵循基于经济原则的系统模式。
The beauty of mathematics is that it allows us to see patterns and structures in the world that are not immediately obvious.
Great science requires both brilliant minds and humble hearts.
The market is always right, and it doesn't care about your opinion.
The past is never dead. It's not even past.