Mathematical research is a journey. We start from one place, often a remote place nobody cares. Guided by mysteries one after another, we arrive at a place we have never imagined. We then suddenly realize that many people have come to the same place, starting from totally different origins.

가장 외로운 사람이 가장 친절하고 가장 슬픈 사람이 가장 밝게 웃는다. 왜냐하면, 그들은 남들이 자신과 같은 고통을 받는 것을 원치 않기 때문이다. 最孤独的人最亲切，最难过的人笑得最灿烂，这是因为，他们不想接受别人的自信和共同点。

— 《素媛》

I am the Alpha and the Omega, the Beginning and the End. To him who is thirsty I will give to drink without cost from the spring of the water of life.

— 《圣经》

只是上辈子欠了岁月一个人情，岁月要让我多等待，磨练我的心性。

— 沈从文 《雨后》