न कूलकाष्ठैर्जलधिर्न रजोभिर्नभस्तलम् ।न म्लायति निजैर्लोकव्यवहारैरिहात्मवान्
In plain words
As the ocean is not withered by the driftwood of its shores, nor the vault of the sky by dust, so here the self-possessed one is not withered by his own dealings with the world.