函数的概念在数学中是基础的，而λ演算提供了一种形式化这一概念的方法。

我们讲述的关于动物的故事更多地反映了我们自己，而不是它们。

舞台是我最自由的地方。

The best ideas often come from the people closest to the problem.

幸福的关键是有梦想。成功的关键是实现你的梦想。

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.