She had what it took: great hair, a profound understanding of strategic lip gloss, the intelligence to understand the world and a tiny secret interio… - Douglas Adams

A towel, [The Hitchhiker's Guide to the Galaxy] says, is about the most massively useful thing an interstellar hitchhiker can have. Partly it has great practical value. You can wrap it around you for warmth as you bound across the cold moons of Jaglan Beta; you can lie on it on the brilliant marble-sanded beaches of Santraginus V, inhaling the heady sea vapors; you can sleep under it beneath the stars which shine so redly on the desert world of Kakrafoon; use it to sail a miniraft down the slow heavy River Moth; wet it for use in hand-to-hand-combat; wrap it round your head to ward off noxious fumes or avoid the gaze of the Ravenous Bugblatter Beast of Traal (such a mind-boggingly stupid animal, it assumes that if you can't see it, it can't see you); you can wave your towel in emergencies as a distress signal, and of course dry yourself off with it if it still seems to be clean enough.

You know,” said Arthur thoughtfully, “all this explains a lot of things. All through my life I’ve had this strange unaccountable feeling that something was going on in the world, something big, even sinister, and no one would tell me what it was.” “No,” said the old man, “that’s just perfectly normal paranoia. Everyone in the Universe has that.

So, the world is fine. We don’t have to save the world — the world is big enough to look after itself. What we have to be concerned about, is whether or not the world we live in, will be capable of sustaining us in it. That’s what we need to think about.