The Hitchhiker's Guide to the Galaxy (Hitchhiker's Guide, #1)

by Douglas Adams

‘Well, perhaps, we’re both going mad.’ ‘Yes,’ said Arthur, ‘we’d be mad, all things considered, to think this was Southend.’ ‘Well, do you think this is Southend?’ ‘Oh yes.’ ‘So do I.’ ‘Therefore we must be mad.’ ‘Nice day for it.’