一切都是学习的过程：每次跌倒，你都会站起来并从中学习。
Everything is a learning process: any time you fall down, you get up and you learn from it.
我不完美，但我就是我。
I always say the same: to win you have to suffer.
Mathematics knows no races or geographic boundaries; for mathematics, the cultural world is one country.
"The best way to predict the future is to invent it."
That which is, is peace. All that we need do is to keep quiet.