"Go into the kitchen and open the first drawer you come to and the odds are you'll find the wooden spoon that is used to stir soups and sauces. If this spoon is of a certain age you will see it no longer has its original shape. It has changed, as if a piece had been cut obliquely off the end. Part of it is missing.
We have (though not all at once, of course) eaten the missing part mixed up in our soup. It is continual use that has given the spoon its new shape. This is the shape the saucepan has made by constantly rubbing away at the spoon until it eventually shows us what shape a spoon for stirring soup should be"
(Bruno Munari. Design as art, Penguin, 2009)