Chapter 3 · verse 21 · gita.yoga.org

Bhagavad Gita 3.21

यद्यदाचरति श्रेष्ठस्तत्तदेवेतरो जनः। स यत्प्रमाणं कुरुते लोकस्तदनुवर्तते

Whatever a great man does, others also do; whatever he establishes as the standard, the world follows.