Failure is not terrible; what's terrible is not daring to try.
Natural experiments can provide valuable insights into economic questions.
设计中最难的部分是保持功能的简洁。
The poor perpetually sell their time cheaply, yet can never buy it back.
矩阵力学是对经典物理学的彻底背离，但它是解释原子世界所必需的。
Life is not a series of gig lamps symmetrically arranged; life is a luminous halo, a semi-transparent envelope surrounding us from the beginning of consciousness to the end.
海洋不仅仅是一种资源；保护它是我们对后代的责任。