数学研究是具体与抽象之间不断的对话。
The study of mathematics is a constant dialogue between the concrete and the abstract.
"The power of a story is in its ability to inspire change."
革命就像骑自行车，如果不前进就会倒下。
活着就意味着终有一死。活着就意味着每时每刻都是一个幸存者。