Noble persons Behaviour

ಯದ್ಯದಾಚರತಿ ಶ್ರೇಷ್ಟಸ್ತತ್ತದೇವೇತರೋ ಜನಃ
ಸ ಯತ್ಪ್ರಮಾಣಂ ಕುರುತೇ ಲೋಕಸ್ತದನುವರ್ತತೇ
यद्यदाचरति श्रॆष्टस्तत्तदॆवॆतरॊ जनः ।
स यत्प्रमाणं कुरुतॆ लॊकस्तदनुवर्ततॆ ॥
Whatever noble/great persons do, others will follow that.Whatever standard they set up, the world follows. So they should be care ful in their deeds. This shloka is from Shrimad Bhagavad Gita(3-21).