Vatican City, September 12 - Families torn apart by violence must not be forgotten during Social Week for Italian Catholics, Pope Francis said Thursday. "Never forget" the sufferings of families where violence is present because of internal conflicts due to failures, angers and frustrations, the Pope said in a message opening Social Week, which is focused on families this year. Francis also said that the Catholic Church officially abides by the Bible's definition of a family as being a union of men and women, adding that cultural choices also have an impact. "May this Social Week contribute effectively to highlight...the promotion of the common good of the family based on marriage, beyond prejudices and ideologies," concluded Francis. Meanwhile, Turin Cardinal Angelo Bagnasco said the institution of the family is a "fundamental right" that should not be undermined. "Destabilizing the family means destabilizing the person and undermines society," said the cardinal, president of the powerful Italian Bishops Conference (CEI).