我喜欢挑战自己。

Every mathematical problem is a puzzle waiting to be solved, and every solution is a step towards greater understanding.

"The fundamental fact about all of us is that we're alive for a while but will die before long. This fact is the real root cause of all our anger and pain."

理解变化的唯一方法是投身其中，随之而动，加入舞蹈。