成功的唯一限制是你自己的想象力。

The most widespread form of inequality in the world today is not that between rich and poor, but that between men and women.

What we think, we become.

We are taught to be ashamed of confusion, anger, fear, and sadness, and to me, they are of equal value to happiness, excitement, and inspiration.

数学中最重要的是提出正确的问题。