When life is over At the end, which is when life is over, death removes all the clothing that differentiated them, and all are equal in the grave. Miguel de Cervantes, Don Quixote deathstatusending
The requirements of economy Economy is the mother of most inventions, not necessity, unless in the sense of poverty and hardship. A requirement for convenience is simply a diluted requirement for ease and economy. It seems to be invariably true that those characteristics which lead people to call a design functional are derived from the requirements of economy and not of use. David Pye, The Nature and Aesthetics of Design Form follows functionEconomy of material and labor function