计算机网络中最重要的东西是协议。
The most important thing in a computer network is the protocol.
"Nothing is too high for a man to reach, but he must climb with care and confidence."
科学不是形式逻辑；它和其他创造性艺术一样，需要思想的自由发挥。
【译文】水过分清澈就不会有鱼，人过于明察就不会有人为你出主意。世上的聪明人若减少一半，那么愚笨的人也就没有了。
善于利用时间的人，永远找得到充裕的时间。
A philosophical problem has the form: "I don't know my way about."
To understand a culture, you must listen to its artists—they are the seismographs of societal change.