Kautilya's Arthashastra 1.2.11

1.2.11

dharmādharmau trayyām arthānarthau vārttāyāṃ nayānayau daṇḍanītyāṃ balābale ca etāsāṃ hetubhir anvīkṣamāṇā lokasya upakaroti vyasane 'bhyudaye ca buddhim avasthāpayati prajñāvākyakriyāvaiśāradyaṃ ca karoti //

Righteous and unrighteous acts (Dharmadharmau) are learnt from the triple Vedas; wealth and non-wealth from Varta; the expedient and the inexpedient (Nayanayau), as well as potency and impotency (Balabale) from the science of government.

When seen in the light of these sciences, the science of Anvikshaki is most beneficial to the world, keeps the mind steady and firm in weal and woe alike, and bestows excellence of foresight, speech and action.