A class on Bhagavad Gita 2.39 given by His Divine Grace A.C. Bhaktivedanta Swami Prabhupada on September 12, 1973 in London.
Bhagavad Gita 2.39
eṣā te ’bhihitā sāṅkhye
buddhir yoge tv imāṁ śṛṇu
buddhyā yukto yayā pārtha
karma-bandhaṁ prahāsyasi
Thus far I have described this knowledge to you through analytical study. Now listen as I explain it in terms of working without fruitive results. O son of Pṛthā, when you act in such knowledge you can free yourself from the bondage of works.