数学是秩序和模式的科学，正是这种秩序让我们能够理解周围的世界。

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.

自信是关键。如果你不相信自己，别人也不会相信你。

勇敢就是无条件地爱一个人，而不期待任何回报。