” “"Far from threatening the tolerance of legitimate diversity added the Pope, still speaking at the Catholic University of America -, a contribution like that illuminates the very truth which makes it possible to reach consensus, and helps keeping the political debate reasonable, honest and reliable". Furthermore, the Church "will never stop supporting the categories" of fair and unfair, "without which hope can only droop, paving the way for cold calculations", which "reduce the person to something slightly more than a pawn on an ideal chessboard". "Truth means more than knowledge", stated Benedict XVI, with reference to the "positivistic mentality which denies the foundations of faith by rejecting metaphysics". For this reason, he added, "society’s intense expectations (in general) from Catholic educators" are not "a surprise", but reveal "the need for excellence in the education of children" by "an ever increasing number" of parents. When "I and satisfaction of desires become the ultimate judgement criterion" warned the Pope, a "relativistic horizon" becomes dominant, and within it, "the scopes of education are inevitably reduced".