Pope Paul VI's 1967 encyclical Populorum Progressio addressed the need for promoting the development of all people and peoples. It discussed how true development requires respecting human dignity and a focus on the complete development of all individuals and society. It called for richer countries and international organizations to provide support to developing countries through practices of solidarity, justice, and charity. The encyclical emphasized that development requires addressing issues like education, work, private property rights, population growth, and social inequality.