"The world breaks everyone, and afterward, many are strong at the broken places."

世界是一块画布，我们每个人都是自己方式的艺术家。

Three passions， simple but overwhelmingly strong， have governed my life: the longing for love， the search for knowledge， and unbearable pity for the suffering of mankind.

数学是概念之间关系的科学，与内容无关。