问答题 Lifecanbecomparedtoshelvesinasupermarket,onwhicharedisplayedendlessarraysofdazzlingmerchandise.Youarenotentitledtoenjoyingthenall.Whatyouareexpectedtodoispickoneortwoyouneedmost.Ifyoutaketoomany,you’llbeeitherburdenedoutofbreathorentirelyburied.