学习数学的唯一方法就是做数学。

当我还是个孩子的时候，我想成为猫王。我想成为迈克尔。我想成为所有这些人的结合体。

Human beings are not born once and for all on the day their mothers give birth to them, but life obliges them over and over again to give birth to themselves.

Teaching is the most glorious profession under the sun.

The fundamental principle of security is to minimize the amount of trust you place in other components.

在风格问题上，随波逐流；在原则问题上，坚如磐石。

可持续性是采石业的未来，我们必须立即行动。

Don’t stop when you’re tired. Stop when you’re done.