I have always fancied that the end of the world will be when some enormous boiler, heated to three thousand millions of atmospheric pressure, shall explode and blow up the globe. … The Americans are great boilermakers.
Rose Tyler: Is that why we’re here? – I mean, is that what you do? Jump in at the last minute and save the Earth?
The Doctor: I’m not saving it. Time’s up.
Rose Tyler: But what about the people?
The Doctor: It’s empty. They’ve all gone. No one left.
Rose Tyler: [silent; looks at the Earth] Just me then.
The Steward: Who the hell are you?
(from Doctor Who )
The world is very different now. For man holds in his mortal hands the power to abolish all forms of human poverty and all forms of human life.
John F. Kennedy