Because of the King's having no enemy, the living beings were not at any time disturbed by mental agonies, diseases, or excessive heat or cold. To be nonviolent to human beings and to be a killer or enemy of the poor animals is Satan's philosophy. In this age there is enmity toward poor animals, and therefore the poor creatures are always anxious. The reaction of the poor animals is being forced on human society, and therefore there is always the strain of cold or hot war between men, individually, collectively or nationally. At the time of Mahārāja Yudhiṣṭhira, there were no different nations, although there were different subordinate states. The whole world was united, and the supreme head, being a trained king like Yudhiṣṭhira, kept all the inhabitants free from anxiety, diseases and excessive heat and cold. They were not only economically well-to-do, but also physically fit and undisturbed by supernatural power, by enmity from other living beings and by disturbance of bodily and mental agonies. There is a proverb in Bengali that a bad king spoils the kingdom and a bad housewife spoils the family. This truth is applicable here also. Because the King was pious and obedient to the Lord and sages, because he was no one's enemy and because he was a recognized agent of the Lord and therefore protected by Him, all the citizens under the King's protection were, so to speak, directly protected by the Lord and His authorized agents. Unless one is pious and recognized by the Lord, he cannot make others happy who are under his care. There is full cooperation between man and God and man and nature, and this conscious cooperation between man and God and man and nature, as exemplified by King Yudhiṣṭhira, can bring about happiness, peace and prosperity in the world. The attitude of exploiting one another, the custom of the day, will only bring misery.
(Srimad Bhagavatam--1:10:6--translation and purport).

As there are symptoms for each and every man, in terms of his particular situation, similarly one who is Kṛṣṇa conscious has his particular nature—talking, walking, thinking, feeling, etc. As a rich man has his symptoms by which he is known as a rich man, as a diseased man has his symptoms by which he is known as diseased, or as a learned man has his symptoms, so a man in transcendental consciousness of Kṛṣṇa has specific symptoms in various dealings. One can know his specific symptoms from the Bhagavad-gītā. Most important is how the man in Kṛṣṇa consciousness speaks; for speech is the most important quality of any man. It is said that a fool is undiscovered as long as he does not speak, and certainly a well-dressed fool cannot be identified unless he speaks, but as soon as he speaks, he reveals himself at once. The immediate symptom of a Kṛṣṇa conscious man is that he speaks only of Kṛṣṇa and of matters relating to Him.
(Bhagavad-Gita--2:54--purport).

The conditioned soul is attracted by the objects of sense gratification. His eyes are attracted to see beautiful things, his ears are attracted to hear nice music, his nose is attracted to enjoy the aroma of a nice flower, and his tongue is attracted to taste nice food. Similarly, all his other senses—his hands, his legs, his belly, his genitals, his mind, etc.—are so susceptible to the attraction of the objects of enjoyment that he cannot restrain himself. Pṛthu Mahārāja, in the same way, could not restrain himself from receiving the four Kumāras, who were bright by dint of their spiritual progress, and thus not only he himself but also his officers and associates all received the four Kumāras. It is said, "Birds of a feather flock together." In this world, everyone is attracted by a person of the same category. A drunkard is attracted to persons who are also drunkards. Similarly, a saintly person is attracted by other saintly persons. Pṛthu Mahārāja was in the topmost position of spiritual advancement, and as such, he was attracted by the Kumāras, who were of the same category. It is said, therefore, that a man is known by his company.
(Srimad Bhagavatam--4:22:3--purport).