Desiderius Erasmus was a
Christian humanist and reformer, in the sense of checking
clerical abuses, honoring inner
piety, considering reason as meaningful in theology as in other ways. He also promoted the notion that Christianity must remain under one church, both theologically and literally, under the body of the
Catholic Church. Since his time, irenicism has postulated removing conflicts between different Christian creeds by way of mediation and gradual amalgamation of theological differences. Erasmus wrote extensively on topics related generally to peace, and an irenic approach is part of the texture of his thought, both on theology and in relation to politics: Despite the frequency and severity of polemics directed against him, Erasmus continued ... to practice a kind of discourse that is critical and ironic, yet modest and irenic. Certain important irenic contributions from Erasmus helped to further the humanist consideration of themes of peace and religious conciliation; these included the
Inquisitio de fide (1524), arguing against the papal opinion that
Martin Luther was a heretic, and
De sarcienda ecclesiae concordia (1533). Erasmus had close associates sharing his views (
Julius von Pflug,
Christoph von Stadion,
Jakob Ziegler and
Jan Łaski) and was followed on the Catholic side by
George Cassander and
Georg Witzel. The influence of Erasmus was, however, limited, by the virtual exclusion of his works from countries such as France, from 1525, at least in the open; though they did appear in numerous forms and translations. James Hutton speaks of "the surreptitious manner in which Erasmus' peace propaganda reached the French public."
Franciscus Junius published in 1593
Le paisible Chrestien arguing for
religious tolerance and
Ecumenism. He addressed
Philip II of Spain, using arguments taken from the French
politique statesman
Michel de l'Hôpital and reformer
Sebastian Castellio. ==17th century: Catholics and Protestants==