"Be free and responsible men and women; make the family a centre that radiates peace and joy; be the promoters of life, since the beginning to its natural waning; protect the elderly". These are the tasks entrusted by Benedict XVI to the young, whom he met tonight in the municipal stadium of Sono Pacaembu, "Paulo Machado de Carvalho". "Above all, be very respectful of the institution of the Sacrament of Marriage", exhorted the Pontiff, according to whom "there will be no true happiness in a household" if "there is no faithfulness between husband and wife. Marriage is a natural-law institution" raised "by Christ to the dignity of a Sacrament", explained the Pope. "At the same time he added God calls you to respect each other, even in falling in love and in getting engaged, since married life, which by divine order is exclusive to married couples, will be a source of happiness and peace insofar as you are able to make chastity, inside and outside marriage, a pillar of our future hopes".