一把椅子不应该只是一个休息的地方,它应该拥抱你。
A chair should be more than just a place to rest, it should embrace you.
凡是言论好行动,有利于上天鬼神与百姓的就做,凡是言论好行动,有害于上天鬼神与百姓的就舍弃。 
Natural experiments can provide valuable insights into economic questions.