经济学家最重要的技能是清晰地思考权衡取舍。
The most important skill for an economist is the ability to think clearly about trade-offs.
创新是市场引入新的技术流程、产品或组织形式。
举一个例子尚且不明白，就不要追求见多识广。
I don't do anything unless I feel like I can be the best at it.
The history of life is a story of endless experimentation.
The only limits in life are the ones you make.