成功不是终点，失败也不是致命的：重要的是继续前进的勇气。
Success is not final, failure is not fatal: It is the courage to continue that counts.
We are all of us, every day, engaged in the act of creating ourselves.
The most personal is the most creative.
The biggest room in the world is the room for improvement.
在数学中，就像在生活中一样，最深刻的发现往往来自于提出最简单的问题。
El escritor debe ser fiel a su voz interior, aunque eso signifique nadar contra la corriente.
The past is a story we tell ourselves.