I just purchased Barbara Chainey's book The Essential Quilter Project Book. She puts it this way:
'Persuing the Holy Grail of tiny stitches does not always make for even stitches and can drastically reduce the pleasure that should be inherent in quilting. Everyone has a stitch size which is natural to them, be it larger or small, and unless you are terrified of the mythical Quilting Police, ther is little point in putting major effort into reducing the size of your stitches when you should be enjoying quilting and allowing yourself to improve at a comfortable and relaxed pace. Take a few steps back from your work - look at the pattern and texture and notice how insignificant those 'inferior' stitches have become in the overall scheme of things'.
I love the way she says it!!