每个读者都为故事带来不同的东西。

We all live in the past, we take a minute to know someone, an hour to like someone , a day to love someone , but a whole life to forget someone.

"The major threats to survival that our ancestors faced - predators, starvation, disease - left their mark on our fears and anxieties."

Persistence is key in mathematical research; many great results come from looking at the same problem from different angles over and over again.

数学不仅仅是关于数字、方程、计算或算法：它是关于理解的。