Bhagavad Gita 5.4

5.4 Children, not the wise, speak of knowledge and the Yoga of action or the performance of action as though they are distinct and different; he who is truly established in one obtains the fruits of both.

Only the ignorant speak of devotional service [karma-yoga] as being different from the analytical study of the material world [Sāṅkhya]. Those who are actually learned say that he who applies himself well to one of these paths achieves the results of both.