创新不是对每件事都说“是”，而是对所有非关键特性说“不”。
Innovation is not about saying yes to everything. It's about saying no to all but the most crucial features.
The worst evils in history have always been committed by those who truly believed they were combating evil. Beware of combating evil.
学习数学的最好方法就是做数学。
You have to be willing to be misunderstood if you're going to innovate.
创造东西真的很难。你必须非常在乎它，才能克服所有的失望和挫折。
技术是工具，人才是核心。
