"Simplicity is the final achievement" -- Chopin, according to the video. After a bunch of Googling the only source I can find for this is a 2007 religious apol

"Simplicity is the final achievement" -- Chopin, according to the video. After a bunch of Googling the only source I can find for this is a 2007 religious apologetics book with no Amazon reviews. I can't even find a French version of the quote. Anyone know if it's legitimate? And a more interesting question: if no one has ever even reviewed this book, how is it all over the Internet as the source of this quote? EDIT: Oops, looks like it is not religious apologetics. Still, I'm curious how a (presumably manufactured) quote like this spreads from such an obscure source.