The Pontifical Council Cor Unum for Human and Christian Development is a part of the Curia of the Catholic Church. It was established by Pope Paul VI on 15 July 1971 and is based in the Palazzo San Callisto, in Piazza San Callisto, Rome. The name of the pontifical council means "one heart", a name that was explained by Paul VI in a speech given in 1972 : "So we were able to give your ecclesial action for aid the name of one heart, a heart that beats in rhythm with the heart of Christ, whose pity for the hungry multitudes reaches them even in their spiritual hunger".