A man conquers the world by the birth of a son; he enjoys eternity by that of a grandson; the great grandfathers enjoy eternal happiness by the birth of a grandson's son.
(पुत्रेण लोकाञ्जयति पौत्रेणानन्त्यमश्नुते। अथ पौत्रस्य पुत्रेण मोदन्ते प्रपितामहः।।)