“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 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 an extra HEART. 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.”
― Steven Moffat