Bhagavad Gita, Chapter 18, Verse 26

मुक्तसङ्गोऽनहंवादी धृत्युत्साहसमन्वितः । सिद्ध्यसिद्ध्योर्निर्विकारः कर्ता सात्त्विक उच्यते

muktasaṅgo'nahaṃvādī dhṛtyutsāhasamanvitaḥ | siddhyasiddhyornirvikāraḥ kartā sāttvika ucyate

Translation

Free from attachment, not given to egotism, endued with firmness and vigour, unaffected in success and failure, an agent is said to be Sāttvic.

— Alladi Mahadeva Sastri

Word meanings

muktasaṅgaḥ

abandoned, attachment, by whom, he

anahaṃvādī

not, I, says, thus

dhṛtyutsāhasamanvitaḥ

with firmness, and, with confidence, and, endowed

siddhyasiddhyoḥ

in success, and, in failure, and

nirvikāraḥ

unchanged

kartā

actor

sāttvikaḥ

sāttvic

ucyate

is called

Śaṅkarācārya's commentary

Vigour: born of firmness; the rising of mental power, body and senses. Unaffected, etc.: he is the same whether success or failure is attained as the result of action. He is impelled to act merely by the injunctions of the śāstra, not by a desire for the fruits.