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.
Interpretation
This quote discusses the teaching strategy of presenting simplified, inaccurate rules before introducing their complexities.
Donald Knuth highlights an unconventional teaching method where initial oversimplifications serve as a foundational step in understanding more complex concepts later on. By starting with a simplified version, learners can grasp the basic idea, making it easier to later address the nuances and exceptions, thereby enhancing their overall comprehension and retention of the material.
In practice
In a classroom discussion about learning strategies, this quote can be used to illustrate the efficacy of teaching through simplification.
Computer programming is an art, because it applies accumulated knowledge to the world, because it requires skill and ingenuity, and especially because it produces objects of beauty. A programmer who subconsciously views himself as an artist will enjoy what he does and will do it better.
The 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.
An algorithm must be seen to be believed.
The process of preparing programs for a digital computer is especially attractive, not only because it can economically and scientifically rewarding, but also because it can be an aesthetic experience much like composing poetry or music.
People who are more than casually interested in computers should have at least some idea of what the underlying hardware is like. Otherwise the programs they write will be pretty weird.
Everyday life is like programming, I guess. If you love something you can put beauty into it.
The illiterate of the 21st century will not be those who cannot read and write, but those who cannot learn, unlearn, and relearn.
The number one problem in today's generation and economy is the lack of financial literacy.
Many girls do not go to school because of poverty.
Much education today is monumentally ineffective. All too often we are giving young people cut flowers when we should be teaching them to grow their own plants.
High school is neither a democracy nor a dictatorship - nor, contrary to popular belief, an anarchic state. High school is a divine-right monarchy. And when the queen goes on vacation, things change.
Books can not be killed by fire. People die, but books never die. No man and no force can abolish memory... In this war, we know, books are weapons. And it is a part of your dedication always to make them weapons for man's freedom.
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