Dr Vissert van Hooft , General Secretary of the World Council of Churches ,addressing delegates at the historic meeting of the Council in Geneva . At the meeting , an agreement designed to pave the way towards Christian Unity and end the differences between catholics and Protestants was reached . On left is Cardinal Bea , head of the Vatican Secretariat for Promotion of Christian Unity , and on right , leading French Protestant , Pastor Marc Boegner . 20th Febtruary 1965