每个数学问题都有解决方案，但并非每个解决方案都显而易见。
技术只是一个工具。真正起决定性作用的是使用它的人的创造力和想象力。
In mathematics, persistence is often more important than brilliance.
"Biography is the most intimate form of history."
"Memory is a strange thing, it doesn't work like I thought it did. We are so used to thinking of it as a camera or a tape recorder, but it's not like that at all. It's more like a painter, who adds and subtracts elements according to his own rules."
没有充足的食物供应，今天所知道的文明就不可能进化，也不可能生存。
The deepest wounds are invisible.
