We all have multiple identities - the trick is to embrace them all.
The greatest happiness is to know the source of unhappiness.
It’s possible that a not-so smart person， who can communicate well， can do much better than a super smart person who can’t communicate well. That is good news because it is much easier to improve your communication skills than your intelligence.
The power of abstraction is what allows mathematics to transcend the limits of physical reality.
重要的不是你被击倒多少次，而是你能重新站起来多少次。