Success is not final, failure is not fatal: It is the courage to continue that counts.

The best way to predict the future is to create it.

I'm not a feminist, but I do believe in the power of women.

The most important part of teaching is to teach what it is to know.

真正的喜悦精神、崇高感、超越人类的感觉，这是最高卓越的试金石，在数学中同样可以在诗歌中找到。