希望は、どんな暗闇の中にも存在する。

"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."

数学的本质不仅在于解决问题，还在于提出正确的问题。

I’m not a businessman, I’m a business, man.

I have come to believe that a great teacher is a great artist and that there are as few as there are any other great artists. Teaching might even be the greatest of the arts since the medium is the human mind and spirit.