Kural - 565

Whom subjects scarce may see, of harsh forbidding countenance;
His ample wealth shall waste, blasted by demon's glance

Explanation
The great wealth of him who is difficult of access and possesses a sternness of countenance, is like that which has been obtained by a devil.

Tamil Transliteration
Arunjevvi Innaa Mukaththaan Perunjelvam
Peeykan Tannadhu Utaiththu.