I learned that the Civil War was a nationalizing conflict, I learned some physics, I learned that correlation shouldn't be confused with causation -- all of these things, by the way, enriched my life on a literally daily basis.
我明白了南北战争实际上是民族冲突， 我还学了点物理， 明白了相关不蕴含因果， 所有这些知识， 让我的生活日渐丰富多彩。