Buddha said to Bhāradvāja the Fire-Worshiper, “But brahmin, do you know what is a lowlife or what are the qualities that make you a lowlife?” ... “Well then, brahmin, listen and apply your mind well, I will speak.

He harms living creatures born of womb or of egg, and has no kindness for creatures: know him as a lowlife.

He destroys and devastates villages and towns, a notorious oppressor: know him as a lowlife.

Whether in village or wilderness, he steals what belongs to others, taking what has not been given: know him as a lowlife.

Having fallen into debt, when pressed to pay up he flees, saying ‘I don’t owe you anything!’: know him as a lowlife.

Wanting some item or other, he attacks a person in the street and takes it: know him as a lowlife.

You’re not a lowlife by birth, nor by birth are you a brahmin. You’re a lowlife by your deeds, by deeds you’re a brahmin.”

Partial excerpts from SN.p 1.7 : Vasalasutta