Bhagwad Gita
Chapter 3, Verse 8
नियतं कुरु कर्म त्वं कर्म ज्यायो ह्यकर्मणः।
शरीरयात्रापि च ते न प्रसिद्ध्येदकर्मणः।।3.8।।
Perform your prescribed duty, for action is better than inaction. A man cannot even maintain his physical body without work.