成功就是在一个个失败之间不失去热情。
Success is going from failure to failure without loss of enthusiasm.
城市是集体的艺术品。
过去从未死去。它甚至还没有过去。
Program testing can be used to show the presence of bugs, but never to show their absence!
所有人都是我们的导师，恶人通过他们的恶行说'不要靠近我'。善人总是善良的，所以所有人都像导师一样对我们。
Free education is abundant, all over the Internet. It's the desire to learn that's scarce.
The only person you should try to be better than is the person you were yesterday.