Kural - 273

As if a steer should graze wrapped round with tiger's skin,
Is show of virtuous might when weakness lurks within

Explanation
The assumed appearance of power, by a man who has no power (to restrain his senses and perform austerity), is like a cow feeding on grass covered with a tiger's skin.

Tamil Transliteration
Valiyil Nilaimaiyaan Valluruvam Petram
Puliyindhol Porththumeyn Thatru.