Teilhard de Chardin developed a perspective of faith and Science synthesis, based on the scientific investigation on cosmic and biological evolution. A result was the proposal of building the Earth to permit the final path of humankind toward the second incoming of Christ. This perspective found a common ground in the long activity, both theoretical and practical, developed by many Roman Catholic thinkers related to social engagement. Among them the Bishop of Pisa Cardinal Maffi who, as Teilhard, was also a scientist, and the Major of Florence, Giorgio La Pira, who developed a vision of politics based on the concept of human person. He also developed activities of dialogue among the Mediterranean men and women of culture, which could be useful for opening a new season of dialogue.