一种新的科学真理并不是通过说服其对手并让他们看到光明而取得胜利，而是因为其对手最终死去，一个熟悉它的新一代人成长起来。
A new scientific truth does not triumph by convincing its opponents and making them see the light, but rather because its opponents eventually die, and a new generation grows up that is familiar with it.
进步的艺术是在变化中保持秩序，在秩序中保持变化。
——临终时对孔祥熙说，1925年3月
发现可能性的极限的唯一方法是超越它们进入不可能。
If you don't drive your business, you will be driven out of business.