Thirukkural 563

வெருவந்த செய்தொழுகும் வெங்கோல னாயின் ஒருவந்தம் ஒல்லைக் கெடும்.

veruvanth-a seyth-ozhu-gum veng-kol-an-ayin oruvanth-am ollai-k keddum

A ruler who acts with fear does what is commanded; fear is swift to destroy unity among his people.