最困难的挑战往往带来最大的转型机会。

I want to liberate America from all the things that hold people back.

We want to build technology that everybody loves using, and that affects everyone. We want to create beautiful, intuitive services and technologies that are so incredibly useful that people use them twice a day. Like they use a toothbrush. There aren’t that many things people use twice a day.

处理一个不自由的世界的唯一方法是变得如此绝对自由，以至于你的存在本身就是一种反叛。

未来取决于你现在做什么。

你唯一应该努力超越的人，是昨天的自己。

化学是一门奇妙的科学，但一个人不应该完全投身于其中。

在计算学习的背景下，“可能近似正确”（PAC）学习的概念为理解学习算法的效率和可行性提供了一个框架。