Man is the worst of all animals when sundered from law and justice

When devoid of virtue man is the most unholy and savage of animals, and the worst in regard to sexual indulgence and gluttony.

-- Aristotle, Politics, 1, 1253a

And GOD saw that the wickedness of man was great in the earth, and that every imagination of the thoughts of his heart was only evil continually.

-- Genesis 6:5

. . . for the imagination of man's heart is evil from his youth;

-- Genesis 8:21