PanchatantraAnushtubh
यस्मिन् जीवति जीवन्ति बहवः स तु जीवति । काकोऽपि किं न कुरुते चञ्च्वा स्वोदरपूरणम् ॥
One truly lives whose existence sustains the lives of many others. Otherwise, doesn't even a crow fill its own belly with its beak?
abyasam.com/en/subhashitam/sub-yasmin-jivati-119
compassionhumanityselflessnessvirtue