This “impossible is nothing” quote is commonly attributed to boxer Muhammadd Ali online. It is, in fact, from a 2004 Adidas ad campaign. The words were written by Aimee Lehto and Brad Coyner of advertising agency TBWA, and then superimposed over images of Ali and other athletes.
Impossible is just a big word thrown around by small men who find it easier to live in the world they’ve been given than to explore the power they have to change it. 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.
-Aimee Lehto, 2004