God is a challenge because there is no proof of his existence and therefore the search must continue.
Donald KnuthThe hardest thing is to go to sleep at night, when there are so many urgent things needing to be done. A huge gap exists between what we know is possible with today's machines and what we have so far been able to finish.
Donald KnuthWe should continually be striving to transform every art into a science: in the process, we advance the art.
Donald KnuthIt would be nice if we could design a virtual reality in Hyperbolic Space, and meet each other there.
Donald KnuthWhen certain concepts of TeX are introduced informally, general rules will be stated; afterwards you will find that the rules aren't strictly true. In general, the later chapters contain more reliable information than the earlier ones do. The author feels that this technique of deliberate lying will actually make it easier for you to learn the ideas. Once you understand a simple but false rule, it will not be hard to supplement that rule with its exceptions.
Donald Knuth