定义属于下定义的人，而不属于被定义的人。

工作的未来在于灵活性和包容性。

The power of abstraction is that it allows us to ignore irrelevant details and focus on the essential aspects of a problem.

The most profound discoveries in mathematics often come from the simplest observations.

The only rule is that there are no rules.

“唯一真正无限的是人类的想象力。”

真相是，我们都有能力做出极大的恶和极大的善。是我们做出的选择定义了我们。