yah prsto munibhih praha

 dharman nana-vidhañ chubhan

nrnam varnasramanam ca

 sarva-bhuta-hitah sada

 

Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 

 

In reply to questions asked by certain sages, he [Svayambhuva Manu], out of compassion for all living entities, taught the diverse sacred duties of men in general and the different varnas and asramas.