The essence of mathematics lies in its freedom.
数学的本质在于其自由性。
你无法成为所有人的一切,但你可以成为某个人的一切。
I don't give a damn if you're offended, I don't care.
Resilience is not a trait that people either have or do not have. It involves behaviors, thoughts and actions that can be learned and developed in anyone.