经济的关键是适度的竞争，而不是垄断。
The great object of all regulations is to secure the utmost quantity of useful produce.
我们是由星尘构成的。
Natural experiments can provide valuable insights into economic questions.
The future of petrochemicals lies in high-value, low-carbon products.
真相不在事实中，而在我们记忆它们的方式里。