தன்நெஞ் சறிவது பொய்யற்க பொய்த்தபின் தன்நெஞ்சே தன்னைச் சுடும்.

Thannenj Charivadhu Poiyarka Poiththapin Thannenje Thannaich Chutum

Let not a man knowingly tell a lie; for after he has told the lie, his mind will burn him (with the memory of his guilt)