Arturo Pérez-Reverte said this quote
“ In essence , games are the only universally serious activity . They leave no room for skepticism , wouldn't you agree ? However incredulous or doubting you might be , if you want to play , you have no choice but to follow the rules . Only the person who respects the rules , or at least knows and applies them , can win . Reading a book is the same : you have to accept the plot and the characters to enjoy the story . ”