The motive for treatment

The editor reports chapter 7's teaching that treatment destroys sin, increases dharma and brings happiness in this world and the next, and that no austerity is greater; so the physician should treat without desire, greed, delusion, friendship, enmity, kinship or wish for honour, out of compassion for the sick and to wear away his own karma, and such treatment never fails, as a farmer's diligent work bears fruit.