Ath。Butiftheyareabsolutelyincommensurable，andyetallofusregardthemascommensurable，havewenotreasontobeashamedofourcompatriots；andmightwenotsaytothem：-OyebestofHellenes，isnotthisoneofthethingsofwhichweweresayingthatnottoknowthemisdisgraceful，andofwhichtohaveabareknowledgeonlyisnogreatdistinction？
Cle。Certainly。
Ath。Andthereareotherthingsakintothese，inwhichtherespringupothererrorsofthesamefamily。
Cle。Whatarethey？
Ath。Thenaturesofcommensurableandincommensurablequantitiesintheirrelationtooneanother。Amanwhoisgoodforathingoughttobeable，whenhethinks，todistinguishthem；anddifferentpersonsshouldcompetewithoneanotherinaskingquestions，whichwillbeafair，betterandmoregracefulwayofpassingtheirtimethantheoldman’sgameofdraughts。