In the old world, you devoted 30% of your time to building a great service and 70% of your time to shouting about it. In the new world, that inverts.
——2008年2月19日在斯坦福大学演讲
教育是一种武器,其效果取决于谁掌握它以及它瞄准谁。
The only thing that can make a difference is love.