A survey of historians shows that most believe written texts to be the best source for historical understanding. None of the historians regarded painting, architecture, music, dance, or culinary arts as the best source for historical understanding. So these historians neglect many important repositories of historical knowledge. The reasoning in the argument is flawed because the argument takes for granted that ['something other than written texts is the best source for historical understanding', 'there are no sources for historical understanding that are neither considered best by historians nor neglected by them', 'the other sources for historical understanding mentioned by the historians surveyed are not important repositories of historical knowledge', 'painting, architecture, music, dance, and culinary arts are important only as sources for historical understanding']