Śrīmad-Bhāgavatam 1.12.26

The wisest man in the world is a devotee of the Lord. The sages are called wise men, and there are different types of wise men for different branches of knowledge. Unless, therefore, the king or the head of the state is the wisest man, he cannot control all types of wise men in the state. In the line of royal succession in the family of Mahārāja Yudhiṣṭhira, all the kings, without exception, were the wisest men of their times, and so also it is foretold about Mahārāja Parīkṣit and his son Mahārāja Janamejaya, who was yet to be born. Such wise kings can become chastisers of upstarts and uprooters of Kali, or quarrelsome elements. As will be clear in the chapters ahead, Mahārāja Parīkṣit wanted to kill the personified Kali, who was attempting to kill a cow, the emblem of peace and religion. The symptoms of Kali are (1) wine, (2) women, (3) gambling and (4) slaughterhouses. Wise rulers of all states should take lessons from Mahārāja Parīkṣit in how to maintain peace and morality by subduing the upstarts and quarrelsome people who indulge in wine, illicit connection with women, gambling and meat-eating supplied by regularly maintained slaughterhouses. In this age of Kali, regular license is issued for maintaining all of these different departments of quarrel. So how can they expect peace and morality in the state? The state fathers, therefore, must follow the principles of becoming wiser by devotion to the Lord, by chastising the breaker of discipline and by uprooting the symptoms of quarrel, as mentioned above. If we want blazing fire, we must use dry fuel. Blazing fire and moist fuel go ill together. Peace and morality can prosper only by the principles of Mahārāja Parīkṣit and his followers.