"A lot of our heroes depress me. But you know, when they made this particular hero, they didn't give him a gun, they gave him a screwdriver to fix things. They didn't give him a tank or a warship or an X-wing fighter, they gave him a call box from which you can call for help. And they didn't give him a superpower or pointy ears or a heat ray...they gave him two hearts. And that's an extraordinary thing. There will never come a time when we don't need a hero like the Doctor."