拿一个物体。对它做点什么。再对它做点别的。
我是行尸走肉，但我只是一个说话的脑袋，一个漂浮的僵尸，但我有一个地下兄弟。
Come on.Just when you think you know something, you have to look at it in another way. Even though it may seem silly or wrong, you must try.
The best way to learn econometrics is by doing—working with real data and real problems.
建筑是在光线下以形式组合而成的学问游戏，精确而壮丽。