过去并非静止，它随着我们的理解而演变。

永远不要停止学习；当你认为自己无所不知的那天，就是你开始落后的那天。

Assume life will be really tough, and then ask if you can handle it.If the answer is yes, you've won.

The complexity of a learning problem is often determined by the size and structure of the hypothesis space.

The problem with marriage is that it ends every night after making love, and it must be rebuilt every morning before breakfast.

除非一个人爱另一个人，否则他无法完全意识到另一个人的本质。

最大的风险是不冒任何风险。在一个快速变化的世界里，唯一注定失败的策略就是不冒险。