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Misattributed to Richard Feynman, by Matthew effect.
Attribution discussed in:  Could Feynman Have Said This? http://scitation.aip.org/journals/doc/PHTOAD-ft/vol_57/iss_5/10_1.shtml by N. David Mermin, Physics Today, May 2004, page 10 ( DOC http://web.archive.org/web/20040929192449/http://www.fisica.unlp.edu.ar/materias/FisGral2/PhysicsToday/PhysicsTodayMay2004ReferenceFrame.doc)
                                    
 
        
     
                             
                             
                             
                             
                             
                             
                             
                            