一本伟大的传记是一种朝圣,走在别人的足迹中,同时试图理解他们的灵魂。
Mathematics is not just a human invention; it has a deep reality that exists independently of us.
有时候要大胆,有时候要小心,一个聪明人知道什么时候该怎么做。
To do nothing is also a good remedy.
The world is always in movement.