Bhagavad Gita: Chapter 3, Verse 21
Sanskrit Verse
यद्यदाचरति श्रेष्ठस्तत्तदेवेतरो जनः।
स यत्प्रमाणं कुरुते लोकस्तदनुवर्तते।।3.21।।
Transliteration
yad yad ācharati śhreṣhṭhas tat tad evetaro janaḥ
sa yat pramāṇaṁ kurute lokas tad anuvartate
Word meanings
yat yat—whatever; ācharati—does; śhreṣhṭhaḥ—the best; tat tat—that (alone); eva—certainly; itaraḥ—common; janaḥ—people; saḥ—they; yat—whichever; pramāṇam—standard; kurute—perform; lokaḥ—world; tat—that; anuvartate—pursues
Swami Sivananda's translation
Whatever a great man does, others also do; whatever he establishes as the standard, the world follows.
Chapter link: Gita Chapter 3

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