人在谈论自己时最不像自己。给他一个面具,他就会告诉你真相。
The truth is that we are all searching for something, but we don't know what it is.
In times of adversity and change, we really discover who we are and what we're made of.
数学之美不仅在于其抽象的优雅,还在于其建模和解决现实世界问题的深刻能力。