The world is even smaller today, though the enemy of John Boyle O'Reilly is no longer a hostile power. Indeed, across the gulfs and barriers that now divide us, we must remember that there are no permanent enemies. Hostility today is a fact, but it is not a ruling law. The supreme reality of our time is our indivisibility as children of God and our common vulnerability on this planet.
Speech to a joint session of the Dail and the Seanad, Dublin, Ireland (28 June 1963)