Nandrikku viththaagum nallozhukam theeyozhukam
Ondrikum kollaem vida.
Good conduct is the seed of gratitude; bad conduct is the one that destroys even a single good thing.
நல்ல ஒழுக்கம் நன்றியின் விதை; தீய ஒழுக்கம் ஒரு நன்மையையும் அழிக்கும்.
Good conduct seeds gratitude — from others toward you and from you toward others. Bad conduct destroys even single good things — one bad act can negate years of good ones. The asymmetry is important: good conduct builds slowly; bad conduct destroys quickly.