The annual TED conference is known for featuring impressive speakers. Attendees at this year's event in Vancouver have seen Serena Williams and Jorge Ramos, futurists and artificial intelligence experts, health activists and the ACLU's executive director.
On Tuesday evening, one unannounced speaker took the audience by surprise: Pope Francis.
"Tenderness is not weakness; it is fortitude," Francis said. "It is the path of solidarity, the path of humility. Please, allow me to say it loud and clear: The more powerful you are, the more your actions will have an impact on people, the more responsible you are to act humbly. If you don't, your power will ruin you, and you will ruin the other."