Every tree we plant today is a legacy for generations we'll never meet.

思维和行为在生命有机体中是不可分割的。

Ignoring isn’t the same as ignorance, you have to work at it.

千里之行，始于足下，再近的道路，如果你不走，就永远不能到达；一屋不扫，何以扫天下？再小的事情，你都不去做，何谈成功？

I'm not a person who gives up on my voice.

That day, for no particular reason, I decided to go for a little run. So I ran to the end of the road, and when I got there, I thought maybe I'd run to the end of town. And when I got there, I thought maybe I'd just run across Greenbow County. Now, I figured since I'd run this far, maybe I'd just run across the great state of Alabama. And that's what I did. I ran clear across Alabama. No particular reason. I just kept on going. I ran clear to the ocean. And when I got there, I figured since I'd gone this far, might as well turn around, just keep on going. And when I got to another ocean, I figured since I'd gone this far... I might as well just turn back and keep right on going. When I got tired, I slept. When I got hungry, I ate. When I had to go... you know... I went.

NP完全性不仅仅是一个理论上的好奇心；它对实际计算有着深远的影响。