That site isn't reliable for checking quotes. The only one I know of that tries to be comprehensive and accurate is Wikiquote, and according to it this line isn

That site isn't reliable for checking quotes. The only one I know of that tries to be comprehensive and accurate is Wikiquote, and according to it this line isn't attributable to Picasso: http://en.wikiquote.org/wiki/Talk:Pablo_Picasso http://en.wikiquote.org/wiki/Talk:Pablo_Picasso.