关系模型基于谓词逻辑和集合论。

过去是一个跟随我们的影子，但选择让它定义我们还是走向光明，是我们的选择。

"All you have to do is write one true sentence. Write the truest sentence that you know."

"There is only one real sin, and that is to persuade oneself that the second-best is anything but the second-best."

I think that it's important to have a sense of humor in life. It helps you get through the tough times.

The only real prison is the one we build for ourselves.

"The past is never dead. It's not even past."

我是个爱人者不是斗士。