Everyday life is like programming, I guess. If you love something you can put beauty into it.

When 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.

By understanding a machine-oriented language, the programmer will tend to use a much more efficient method; it is much closer to reality.

Meta-design is much more difficult than design; it's easier to draw something than to explain how to draw it.

We should continually be striving to transform every art into a science: in the process, we advance the art.

Random numbers should not be generated with a method chosen at random

Email is a wonderful thing for people whose role in life is to be on top of things. But not for me; my role is to be on the bottom of things. What I do takes long hours of studying and uninterruptible concentration.