The Great Depression was the defining macroeconomic event of the twentieth century, and it led to a fundamental rethinking of macroeconomic theory and policy.
大萧条是二十世纪的决定性宏观经济事件，它引发了对宏观经济理论和政策的根本性重新思考。
心灵是一个不断适应的过程。
儿童书籍应该像阅读它们的孩子们一样多样化。
You have to be comfortable with being uncomfortable if you want to make progress in mathematics.
The best forestry practices are those that leave no trace but leave everything changed.
Innovation often happens at the boundaries of different fields.
牛、猪、战争和巫术并非任意的文化偏好，而是对物质条件的适应。
