Why do Amish quiltmakers deliberately make a mistake on the quilts they make?

One of the first bits of wisdom imparted to a novice quilter is that the Amish, who make some of the most simple but exquisite quilts in the world, purposely plan a mistake into each of their projects because they believe attempts at human perfection mock God. Of course, any quilter knows that you don’t have to plan for imperfections in your work; they come quite naturally on their own, so I don’t know if this bit of Amish folklore rings true or not, but the idea does ... We’ve heard that many years ago sometimes a scrap of fabric that didn’t quite match was used inconspicuously in a patchwork quilt to give it “identity.” We question whether this is true. We don’t know of any quilters who would do that today. Amish quilts are all band quilted; stitches are very small and uniform. But, no matter how hard one tries, the stitches are not all identical and perfect. A quilt may have an imperfection, but it wasn’t on purpose.”