Old paint on canvas, as it ages, sometimes becomes transparent. When that happens it is possible, in some pictures, to see the original lines: a tree will show through a woman's dress, a child makes way for a dog, a large boat is no longer on an open sea. That is called pentimento because the painter 'repented,' changed his mind. Perhaps it would be as well to say that the old conception, replaced by a later choice, is a way of seeing and then seeing again.
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。
计算复杂性的美在于它能够揭示问题的固有难度，而不管用于解决这些问题的具体算法是什么。
Integrity is the foundation of an enterprise; without integrity, there is no market.
The soul needs only one thing: to do what the body is doing.