Natural experiments can provide valuable insights into economic questions.

Our industry must be part of the solution to climate change. We have the skills, the technologies and the responsibility to act.

I have been a selfish being all my life, in practice, though not in principle.

永远年轻，永远热泪盈眶。

I want the reader to feel something is astonishing—not the 'what happens' but the way everything happens.