If on the other hand he went to pay his respects to The Door and it wasn't there . . . what then? The answer, of course, was very simple. He had a whole board of circuits for dealing with exactly this problem, in fact this was the very heart of his function. He would continue to believe in it whatever the facts turned out to be, what else was the meaning of Belief? The Door would still be there, even if the Door was not.
Douglas AdamsOne of the major problems encountered in time travel is not that of accidentally becoming your own father or mother. There is no problem involved in becoming your own father or mother that a broadminded and well-adjusted family can't cope with.
Douglas AdamsWhat god would be hanging around Terminal Two of Heathrow Airport trying to catch the 15:37 flight to Oslo?
Douglas AdamsVery strange people, physicists - in my experience the ones who aren't dead are in some way very ill.
Douglas AdamsTime, we know, is relative. You can travel light years through the stars and back, and if you do it at the speed of light then, when you return, you may have aged mere seconds while your twin brother or sister will have aged twenty, thirty, forty or however many years it is, depending on how far you traveled. This will come to you as a profound shock, particularly if you didn't know you had a twin brother or sister.
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