Differ We MustBy: Steve Inskeep An instant New York Times bestseller A nuanced exploration of Abraham Lincolns political acumen, illuminating a great politicians strategy in a country dividedand lessons for our own disorderly present In 1855, with the United States at odds over slavery, the lawyer Abraham Lincoln wrote a note to his best friend, the son of a Kentucky slaveowner. Lincoln rebuked his friend for failing to oppose slavery. But he added: If for this you