A primary cause of complexity is that software vendors uncritically adopt almost any feature that users want.

Reliable and transparent programs are usually not in the interest of the designer.

A good designer must rely on experience, on precise, logic thinking; and on pedantic exactness. No magic will do.

In the practical world of computing, it is rather uncommon that a program, once it performs correctly and satisfactorily, remains unchanged forever.

Usually its users discover sooner or later that their program does not deliver all the desired results, or worse, that the results requested were not the ones really needed.

Programming is usually taught by examples.

Software development is technical activity conducted by human beings.