Isaac Asimov quotes - page 13
Weisinger, a couple of years ago, made up the following story: "Isaac Asimov was asked how Superman could fly faster than the speed of light, which was supposed to be an absolute limit. To this Asimov replied, 'That the speed of light is a limit is a theory; that Superman can travel faster than light is a fact.'"
I assure you it never happened and I never said it, but it will be repeated, I am quite certain, indefinitely, and it will probably be found in Bartlett's quotations a century from now, attributed to me, after all my writings have been forgotten.
Isaac Asimov