即使在最黑暗的时刻，只要记得点亮灯光，就能找到幸福。

"In observational studies, we often have to rely on assumptions that are not directly testable."

过去是一个塑造现在的阴影。

Every building must tell a story, the story of the people who inhabit it.

The bond market is the ultimate arbiter of risk.

写作是一种勇敢的行为，是面对自己和世界的行为。