What is the difference between a Turing machine and the modern computer? It's the same as that between Hillary's ascent of Everest and the establishment of a Hilton hotel on its peak.
我认为最重要的是对自己诚实，对周围的人诚实。
The past is a foreign country; they do things differently there.
Never stop learning. The moment you think you know it all is the moment you fail.
关于地精和精灵的观念与黑暗和光明没有任何关系。