Thirukkural

இனத்தாற்றி எண்ணாத வேந்தன் சினத்தாற்றிச் சீறிற் சிறுகும் திரு.

Inaththaatri Ennaadha Vendhan Sinaththaatrich Cheerir Sirukum Thiru

The prosperity of that king will waste away, who without reflecting (on his affairs himself), commits them to his ministers, and (when a failure occurs) gives way to anger, and rages against them