On the occasion of the 125th anniversary of the birth and the 40th anniversary of the passing of Justin Popović, on May 10th and 11th, 2019, an international scientific conference titled ‘The Thought and Mission of St. Justin Popović’ was held at the Institute for Philosophy and Social Theory in Belgrade, organized by the Institute for Philosophy and Social Theory, the Faculty of Orthodox Theology of the University of Belgrade, and the Center for Byzantine-Slavic Studies of the University of Niš.