当你停下来思考你是否爱一个人时，你已经永远停止爱那个人了。
The moment you stop to think about whether you love someone, you've already stopped loving that person forever.
有时候，最难的事情和正确的事情是同一件事。
孔子说：“人无信誉，不知能干什么？就象大车没有车轴，小车没有车轴，怎么能启动？”
True understanding in science comes from connecting seemingly unrelated dots.
唯一真正的知识是自知之明。