Every four years, the International Office of Catholic Education (OIEC in French) organizes its World Congress as an opportunity for participants -- including school teachers and principals, to share their experiences and achievements, as well as the challenges they face. In June 2019, the Educatio Si Congress took place in New York in partnership with Fordham University. The theme of the Congress was "Educating to fraternal humanism to build a civilization of love." The closing plenary was held at the United Nations to highlight the contribution of Catholic schools to the fourth Sustainable Education Goal (SDG4), namely ensuring inclusive and equitable quality education and promoting lifelong learning opportunities for all. This symposium comprises of selected contributions made at the congress, with a focus on the opening plenary at the Church of St Paul the Apostle and the closing plenary at the United Nations.