== Questions in Etymology == 

 Can anyone cite a use of "ars" in Latin literature where it refers to an arrangement that is random, has no identifiable purpose,  and does not require some specific knowledge or skill ?  

 Is anyone aware of "ars" referring to a deliberate 
 arrangement by nature (rather than by human or divine 
 agency) ?  (as the word "tao" in Mandarin may refer to all three)