Without religion human society is only animal society

Expressions researched:
"Without religion, human society is only animal society" |"no better than animal society"

SB Canto 4

If it does not observe the institutional functions of the four social orders, human society is no better than animal society in which there is never tranquillity, peace and prosperity but only chaos and confusion.

SB 4.21.22, Purport:

The four social orders—the brāhmaṇas, kṣatriyas, vaiśyas and śūdras—are natural divisions of human society, and as declared by Pṛthu Mahārāja, every man in his respective social order must have proper employment for his livelihood. It is the duty of the king or the government to insure that the people observe the social order and that they are also employed in their respective occupational duties. In modern times, since the protection of the government or the king has been withdrawn, social order has practically collapsed. No one knows who is a brāhmaṇa, who is a kṣatriya, who is a vaiśya or who is a śūdra, and people claim to belong to a particular social order by birthright only. It is the duty of the government to reestablish social order in terms of occupational duties and the modes of material nature, for that will make the entire world population actually civilized. If it does not observe the institutional functions of the four social orders, human society is no better than animal society in which there is never tranquillity, peace and prosperity but only chaos and confusion. Mahārāja Pṛthu, as an ideal king, strictly observed the maintenance of the Vedic social order.