When I got to 40 or so... I had the sense when I looked back over my life I would actually see a mess of decisions， a few of which I had thought about， some of which I had sort of stumbled on， and many that I had no control over whatsoever.
模型的好坏取决于其所基于的数据。
"We are all time travelers, moving forward at the speed of life, but always looking back."
画布上的旧颜料，随着时间的推移，有时会变得透明。当这种情况发生时，在某些画作中，可以看到原始的线条：一棵树会透过女人的裙子显现出来，一个孩子给狗让路，一艘大船不再在开阔的海面上。这被称为“悔改”，因为画家“后悔了”，改变了主意。也许可以说，被后来的选择所取代的旧观念，是一种看然后再看的方式。