 This is a weak reed on which to lean, for it is a rare language indeed that contains no loan words.In any case, the beauty of a language and its merits as a literary medium depend less on size of vocabulary and purity of etymology that on the euphony, expressiveness and malleability of those words its lexicon does include.Moreover, even if Nawa'i's thesis were to be accepted as valid, he destroyed his own case by the lavish use, no doubt unknowingly, of non-Turkic words even while ridiculing the Persians for their need to borrow Turkic words.