But we must accept the challenge that all of us in democratic governments face: to listen to the voices who disagree with us; to have an open debate about how we use our powers and how we must constrain them; and to always remember that government exists to serve the power of the individual, and not the other way around. That's what makes us who we are, and that's what makes us different from those on the other side of the wall.

Brandenburg Gate Speech (June 2013)