"I am profoundly moved by this meeting with young people -- an extraordinary meeting among young people of all cultures, united in the search for truth, united under the sign of Jesus Christ," the Pope told reporters today at the Roman airport of Ciampino.
"These young people are the force of peace in the world," he said.
Before his plane took off, the Holy Father met again with journalists and had some advice for them before going to Cologne, whose cathedral, according to tradition, houses the relics of the Magi.
"Try to write beautiful things," he said. "Let us go together on pilgrimage in the footsteps of the Wise Kings."