子曰：“学而时习之，不亦悦乎？有朋自远方来，不亦乐乎？人不知，而不愠，不亦君子乎？”
孔子说：“经常学习，不也喜悦吗？远方来了朋友，不也快乐吗？得不到理解而不怨恨，不也是君子吗？”
心灵不是一种物质，而是一个过程。
Collaboration between governments, businesses and society is essential to tackle climate change.
The true value of a mathematical theory lies in its ability to connect seemingly unrelated ideas.
出自《论语·先进篇第十一》。子路问孔子说：“我大胆的请教您，死是怎么回事呢？”孔子回答说：“还不知道生是怎么一回事，怎么能够知道死亡呢？”
People are always blaming their circumstances for what they are. I don't believe in circumstances. The people who get on in this world are the people who get up and look for the circumstances they want, and, if they can't find them, make them.
I'm the walking dead, but I'm just a talking head, a zombie floating around but I'm never dead.
When you are young, you think you will be happy when you are older. But then you get older and you realize you were happy when you were young.
Software is under a constant tension. Being symbolic it is arbitrarily perfectible; but also it is arbitrarily changeable.