唯一失败的时候就是你停止尝试的时候。

We are all visitors to this time, this place. We are just passing through. Our purpose here is to observe, to learn, to grow, to love... and then we return home.

理解计算的极限需要深入研究支撑算法复杂性的数学基础。

我喜欢政治晚会，这是唯一人们不谈政治的地方。