Dr. Raghavan Shastri
SCHOLARकर्मण्येवाधिकारस्ते मा फलेषु कदाचन। मा कर्मफलहेतुर्भूर्मा ते सङ्गोऽस्त्वकर्मणि॥
karmaṇy evādhikāras te mā phaleṣu kadācana | mā karma-phala-hetur bhūr mā te saṅgo 'stv akarmaṇi ||
Classical Commentary — Adi Shankaracharya (Gita Bhashya)
“Action performed without craving for fruits purifies the mind (Chitta Shuddhi), qualifying the practitioner for dawn of intuitive spiritual knowledge (Jnana Nishta).”
In Sri Ramanujacharya's commentary, the key emphasis is placed on "Karmanyevadhikaraste" as Nishkama Karma dedicated unto Narayana, whereby the ego (Kartritva) is fully surrendered.
Practicing this in modern corporate life has brought immense peace of mind. Truly eternal wisdom.