Everybody on this island has one ambition, which may be summed up very simply. It is to do something, however small it may be, better than anyone else. Of course, it’s an ideal we don’t all achieve. But in this modern world the great thing is to have an ideal. Achieving it is considerably less important.
British science fiction writer, inventor, and futurist (1917–2008)
Sir Arthur Charles Clarke (16 December 1917 – 19 March 2008) was a British author, inventor and futurist, famous for his short stories and novels, among them 2001: A Space Odyssey (1968), and as a host and commentator in the British television series Mysterious World. For many years, Robert A. Heinlein, Isaac Asimov, and Clarke were known as the "Big Three" of science fiction.
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Jupiter's fly-by had been carried out with impeccable precision. Like a ball on a cosmic pool table, Discovery had bounced off the moving gravitational field of Jupiter, and had gained momentum from the impact. Without using any fuel, she had increased her speed by several thousand miles an hour.
Yet there was no violation of the laws of mechanics; Nature always balances her books, and Jupiter had lost exactly as much momentum as Discovery had gained. The planet had been slowed down - but as its mass was a sextillion times greater than the ship's, the change in its orbit was far too small to be detectable. The time had not yet come when Man could leave his mark upon the Solar System.
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