素描就是诚实。没有作弊的可能。画得好就是好，不好就是不好。

To write is to resist the forces of forgetting.

领导的艺术在于说不，而不是说是。说是很容易的。

We need to shift from ownership to access—from products to services.

反馈的研究就是稳定性的研究。

I want to make people feel good. That's all I wanna do.

The most profound ideas in mathematics often arise from the simplest observations.

如果你身陷地狱，那就继续前行。