我相信对你所做的事情有热情是很重要的。如果你没有热情，当事情变得艰难时，你就不会有继续前进的能量。
"I believe that every child is an artist. The problem is how to remain an artist once we grow up."
The learn-it-all does better than the know-it-all.
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
The capacity of the human mind for forming and manipulating symbols is what sets us apart from other animals.
Every life is a universe, and every death is the end of a world.