不一定要比别人强，但要比过去的自己强。
It's not always necessary to be better than everyone else, but to be better than you used to be.
"The difference between correlation and causation is fundamental in empirical work."
The world breaks everyone, and afterward, many are strong at the broken places.
The fool doth think he is wise, but the wise man knows himself to be a fool.
唯一不可能的事情是你没有尝试的事情。
In computer science, we often find that the simplest solutions are the most elegant.