सिद्ध्यसिद्ध्योर्निर्विकारः कर्ता सात्त्विक उच्यते।।18.26।।
18.26 An agent who is free from attachment, non-egoistic, endowed with firmness and enthusiasm, and unaffected by success or failure, is called Sattvic (pure).
18.26 Karta, the agent; who is mukta-sangah, free from attachment-one by whom attachment has been given up; anahamvadi, not egotisic, not given to asserting his ego; dhrti-utsaha-samanvitah, endowed with fortitude and diligenc; and nirvikarah, unperturbed; siddhi-asiddhyoh, by success and failure, in the fruition and non-fruition of any action under-taken-led only by the authority of the scriptures, not by attachment to results etc. [Etc. stands for attachment to work.];-the agent who is such, he is ucyate, said to be; sattvikah, possessed of sattva.
Muktasango’nahamvaadi dhrityutsaahasamanvitah; Siddhyasiddhyor nirvikaarah kartaa saattwika uchyate.
mukta-saṅgaḥ—free from worldly attachment; anaham-vādī—free from ego; dhṛiti—strong resolve; utsāha—zeal; samanvitaḥ—endowed with; siddhi-asiddhyoḥ—in success and failure; nirvikāraḥ—unaffected; kartā—worker; sāttvikaḥ—in the mode of goodness; uchyate—is said to be