Causal inference is not just about statistical significance; it's about understanding the mechanisms behind the numbers.
后见之明对历史学家乃至回忆录作者非常有用,但遗憾的是,实践中的政治家却无法拥有。
生活就是不断地放下,但最遗憾的是我们来不及好好告别。
It's not just about writing code; it's about solving problems.
欲望使人即使到了天堂也会坐立不安。