No life worth naming ever comes to good br If always nourished on the selfsame food; br The creeping mite may live so if he please, br And feed on Stilton till he turns to cheese, br But cool Magendie proves beyond a doubt, br If mammals try it, that their eyes drop out. br br No reasoning natures find it safe to feed, br For their sole diet, on a single creed; br It spoils their eyeballs while it spares their tongues, br And starves the heart to feed the noisy lungs.