At an early age I learned that people make mistakes, and you have to decide if their mistakes are bigger than your love for them.

The language of mathematics is the language of the universe, and by learning it, we can understand the cosmos.

【释义】抓住时机不要懈怠，因为机会一旦错过就不会再来。

用一把燃烧的小提琴，带我舞向你的美丽。

我们从这样的假设开始：任何学科都可以以某种智力上诚实的形式有效地教给处于任何发展阶段的任何孩子。