追求智慧的人永远不会停止探索。
有时候，我认为我们紧紧抓住某样东西的原因是因为我们害怕如此美好的事情再也不会发生。
The power of accurate observation is commonly called cynicism by those who have not got it.
A good mathematician should be both rigorous and imaginative.
有时候最难的部分不是放手，而是学会重新开始。
The most beautiful people are those who have known defeat, known suffering, known struggle, known loss, and have found their way out of the depths.
La palabra es el arma más poderosa que tenemos, porque con ella podemos cambiar el mundo.