Mathematics is the language of the universe, and through it, we can understand the fundamental principles that govern our world.

The only limits in life are the ones you set for yourself.

先爱自己，其他一切都会水到渠成。

He is unworthy to live who lives only for himself.

一切都可以从一个人身上夺走，除了一样：人类最后的自由——在任何特定环境下选择自己态度的能力。