<prompt> Translate the following text to EnglishIkiwa utachagua kesi chache ili kuonyesha jumla kubwa, basi lazima uwe na hoja nzuri na iliyoelezwa vizuri kwa uteuzi wao.  <response>: If you are going to pick a few cases to illustrate the larger whole, then you have to have some pretty compelling and well-articulated reasoning for their selection. 