Home » Impossible is not a fact. It’s an opinion. ~ Muhammad Ali Quotes Impossible is not a fact. It’s an opinion. ~ Muhammad Ali Impossible is not a fact. It’s an opinion.Impossible is not a declaration. It’s a dare. Impossible is potential.Impossible is temporary.Impossible is nothing.~ Muhammad Ali> by Johnny Stones, for Truth Inside Of You. Don’t forget to visit our Quotes Gallery! June 5, 2016