No one wants to learn from mistakes, but we cannot learn enough from successes to go beyond the state of the art.
Henry PetroskiWhether or not science can be applied to that mental construct [i.e. the designed entity] is a matter of availability. If there is body of scientific knowledge that can be applied, then it would be foolish not to exploit it. However, if there is none, it does not mean that the thing cannot be designed, made, and used safely.
Henry PetroskiThe most amazing achievement of the computer software industry is its continuing cancellation of the steady and staggering gains made by the computer hardware industry.
Henry Petroski