Causal inference is not just about statistical significance; it's about understanding the mechanisms behind the numbers.
我们必须平衡能源供应与环境保护。
译文：老天爷的心思猜不透，但做人的道理容易守住。
Everyone has a secret world inside of them. All of the people of the world, I mean. Everybody. No matter how dull and boring they are on the outside, inside them they’ve all got unimaginable, magnificent, wonderful, stupid, amazing worlds. Not just one world. Hundreds of them. Thousands maybe.
一个人格就是一场完整的演说家和压力集团的集会，有儿童、煽动者、共产主义者、孤立主义者、战争贩子、骑墙派、贪污者、祈祷者、冒险家和职员；每一个都只占一席之地。