(For mutual abuse) by a Brahmana and a Kshatriya a fine must be imposed by a discerning (king), on the Brahmana the lowest amercement, but on the Kshatriya the middlemost.
A Vaisya and a Sudra must be punished exactly in the same manner according to their respective castes, but the tongue (of the Sudra) shall not be cut out; that is the decision.
With whatever limb a man of a low caste does hurt to (a man of the three) highest (castes), even that limb shall be cut off; that is the teaching of Manu.