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.

我不是为了金钱或名声打球，而是为了热爱。

物理学不仅仅是解决问题，它是关于理解现实的本质。

“怜悯或同情，是所有人同样自然的情感。”

想象力的力量是无限的，它是你与神性的连接。

程序员最重要的技能是阅读代码的能力。