科学无国界，因为知识属于人类，是照亮世界的火炬。
Science knows no country, because knowledge belongs to humanity, and is the torch which illuminates the world.
The real contest is always between what you've done and what you're capable of doing. You measure yourself against yourself and nobody else.
We are all different, but we share the same human spirit. Perhaps it's human nature that we adapt and survive.
顾客不一定总是对的，但他们永远是顾客。
The beauty of mathematics lies in its ability to connect seemingly unrelated ideas.