In software systems it is often the early bird that makes the worm. Alan Perlis
A little retrospection shows that although many fine, useful software systems have been designed by committees and built as part of multipart projects, those software systems that have excited passionate fans are those that are the products of one or a few designing minds, great designers. Fred Brooks
The object-oriented paradigm is useful when building software systems where there is a hierarchy defined as a ranking or ordering of abstractions. Grady Booch
In 10 years, you'll see 99% of the hardware and software systems sold through what are fundamentally retail stores. Gordon Bell
As a rule, software systems do not work well until they have been used, and have failed repeatedly, in real applications. David Parnas