p. 211
यच्चान्यथात्वं द्विज याति भूयो न तत्तथा तस्य कुतो हि तत्त्वम् ॥
In plain words
And whatever keeps turning into something else, brāhmaṇa — that thing is no longer as it was. Where would its reality come from?
Close to the Sanskrit
And that which, O twice-born, goes again into otherness — that is not thus; of that, whence indeed is reality?