“I know what you’ll say. You’ll say it’s dirty low-down business; but what if it is? – I’m low down; and I’m agoing to steal him, and I want you to keep mum and not let on. Will you?”

– Mark Twain

The Adventures of Huckleberry Finn, Chapter 33. Huck reveals his plan to friend Tom to save Jim from slavery, even though he thinks this is a low down thing to do. His moral conflicts again: doing the right thing vs the legal thing.