人最重要的品质是勇气。没有它，其他品质都毫无价值。
The most important quality in a man is courage. Without it, the other qualities are worthless.
变化的速度要求我们忘记的和学习的一样多。
The most profound discoveries in mathematics often come from questioning the most basic assumptions.
Efficiency without ethics is empty progress.
释义：天下大事不取决于力量强弱，而在于民心的向背。