书籍是最安静、最恒久的朋友；它们是最易接近、最睿智的顾问，也是最耐心的老师。
Books are the quietest and most constant of friends; they are the most accessible and wisest of counselors, and the most patient of teachers.
The best way to learn mathematics is to do mathematics.
一个人直到能够超越个人利益的狭隘局限，关注整个人类的利益，他才真正开始生活。
Digital media hasn't replaced painting - it's given us new ways to think about mark-making.
"El pasado no es más que una ilusión, pero es una ilusión necesaria."
