"A few sums!" retorted Martens, with a trace of his old spirit.  "A
 major navigational change, like the one needed to break us away from
 the comet and put us on an orbit to Earth, involves about a hundred
 thousand separate calculations.  Even the computer needs several
 minutes for the job."
                -Arthur C. Clarke, "Into The Comet"

"It may be that our role on this planet is not to worship God, but to
 create him."
                -Arthur C. Clarke

"Clarke's First Law: When a distinguished but elderly scientist states
 that something is possible, he is almost certainly right. When he
 states that something is impossible, he is very probably wrong.
                -Arthur C. Clarke, "Technology and the Future"

"Clarke's Second Law: The only way to discover the limits of the
 possible is to go beyond them into the impossible."
                -Arthur C. Clarke, "Technology and the Future"

"Clarke's Third Law: Any sufficiently advanced technology is
 indistinguishable from magic."
                -Arthur C. Clarke, "Technology and the Future"

"Politicians should read science fiction, not westerns and detective
 stories."
                -Arthur C. Clarke