A gradual refinement The steel rail is an artifact whose form has been carefully optimized. This gradual refinement of the design was done not by a single brilliant engineer but by more than a century of industrial evolution. The rail was never meant to be an object of beauty, but its cross section has all the elegance of fine typography. Brian Hayes, Infrastructure: A Guide to the Industrial Landscape elegancetypographytransportationevolutionchange
What the problem is Sometimes the problem is to discover what the problem is. Gordon Clegg, The Design of Design (Cambridge Engineering Series) The heart of systems engineeringComplete and consistent requirements problemsdesignux