The probable error of a correlation coefficient is not a thing which can be deduced from first principles, but must be found empirically.
相关系数的可能误差不是可以从第一原理推导出来的东西，而是必须通过经验找到的。
资本是死劳动，像吸血鬼一样，只有吮吸活劳动才有生命，吮吸的活劳动越多，它的生命就越旺盛。
"There is no doubt fiction makes a better job of the truth."
Architecture is about creating places, not just buildings.
Labor economics is fundamentally about understanding people’s choices and constraints.
锂离子电池对世界产生了非常大的影响。
A story is never finished; it’s only abandoned.