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"A complex system that works is invariably found to have envolved from a simple system that worked... A complex system designed from scratch never works and cannot be patched up to make it work. You have to start over with a working simple system." - John Gall in Systemantics: How Systems Really Work and How They Fail

"An architect's first work is apt to be spare and clean. He knows he doesn't know what he is doing, so he does it carefully and with great restraint. As he designs the first work, frill after frill and embellishment after embellishment occur to him. These get stored away to be used "next time"... The second system is the most dangerous system a man ever designs... The general tendency is to over-design the second system using all the ideas and frills that were cautiously sidetracked on the first one." - Frederick P. Brooks, Jr. in The Mythical Man Month, 1972