凡事天下要考察有无的原则，必定是以众人的耳目所见所闻的实情以知有与无来作为标准的。
We are standing on the shoulders of giants, but there is still so much more to discover.
Scientific rigor is the foundation of everything we do; without it, trust is impossible.
A good system design is one that makes it easy to do the right thing and hard to do the wrong thing.
一个好的系统设计是使做正确的事情变得容易，做错误的事情变得困难。