(VOVworld)- The 2^nd national conference to honor 70 outstanding families opened in Hanoi on Wednesday. In his address, President Truong Tan Sang highlighted the significance of the movement of to build healthy families saying that the Vietnamese Party and State paid special attention to this effort. He asked sectors and localities and each family to contribute to promoting social ethics. He expressed his hope that the role models of healthy families would influence the 16 million families in Vietnam, who are the foundation for national development and international integration.