Leadership is about making the tough decisions and standing by them.

Stay Hungry. Stay Foolish. And I have always wished that for myself. And now, as you graduate to begin anew, I wish that for you. 

用努力证明自己，而不是用言语。

Certification standards are more than paperwork—they're our promise to the planet.

对智能的研究必须整合多个学科。