Joe Abercrombie said this quote

“ Inquisitor Lorsen's thin lip curled. There is truly nothing in you of what separates man from animal, is there? You are bereft of conscience. An utter absence of morality. You have no principle beyond the selfish.Cosca's face hardened as he leaned forwards. Perhaps when you have faced as many disappointments and suffered as many betrayals as I, you will see it - there is no principle beyond the selfish, Inquisitor, and men are animals. Conscience is a burden we choose to bear. Morality is the lie we tell ourselves to make its bearing easier. There have been many times in my life when I have wished it was not so. But it is so. ”