花总是表里不一，而我太年轻了，不知道该怎样爱护她……
The improvement of understanding is for two ends: first, our own increase of knowledge; secondly, to enable us to deliver that knowledge to others.
The arc of the moral universe is long， but it bends toward justice.
You have to think anyway, so why not think big?
科学不仅仅是关于事实，而是理解支配这些事实的基本原理。