数学的目标不是解决问题，而是理解问题。

I find I'm so excited. I can barely sit still or hold a thought in my head. I think it the excitement only a free man can feel, a free man at the start of a long journey whose conclusion is uncertain. I hope I can make it across the border.I hope the Pacific is as blue as it has been in my dreams. I hope to see my friend, and shake his hand. I hope.

你不需要很厉害才能开始，但你必须开始才能变得厉害。

有时最简单的想法能创造出最好的故事。

真正的艺术存在于作品与观者的相遇之中。

我认为最好的作品来自于真实的地方。

最终，我们都是凡人。

We innovate by starting with the customer and working backwards. That becomes the touchstone for how we invent.