I have a very basic question that greatly puzzles me. Why do we consider reasonable sounding imaginings to be wisdom, for example Plato's idea of the existence of an ideal of each kind of object, such that an actual physical object is merely an approximation? I can see that this may have entertainment value; but why to serious intelligent educated people take such metaphors seriously? Why is a chair not simply any object designed primarily for sitting? Why does no one seem to question the VALIDITY of the notion of ideals and approximations? It seems that we elevate mere metaphors to the status of realities. Why do we do that? I am genuinely confused.