Mathematics knows no races or geographic boundaries; for mathematics, the cultural world is one country.

"The world is, in the end, what we say it is."

A proof of a proposition is a process the nature of which is such as to produce in us a belief in that proposition.

Innovation is key to solving the challenges of today and tomorrow.

写作是一种反抗，是对遗忘的抗争，是对沉默的挑战。