数学不是沿着一条清理得很好的高速公路小心行进，而是一次进入陌生荒野的旅程，探险者常常会迷路。
Mathematics is not a careful march down a well-cleared highway, but a journey into a strange wilderness, where the explorers often get lost.
The bike is my life. I ride it to work, I ride it for fun, I ride it to race, and I ride it to stay alive.
每一本书都是一个待发现的世界，充满了惊喜和教诲。
The truth is rarely pure and never simple.
你最害怕的东西本身其实并不可怕。是你的害怕使它显得可怕。只要勇敢地面对真相，你就会身心解放。