posted by Aria .
I need help finding a principle of economics. The principal is people choose. The text is called "Why we're still fighting the civil war " by David Von Drehle. Time Magazine has the article.
My answer is "Abraham Lincoln said that a single issue dividing the nation is slavery. He declared that: one section of our country believes slavery is right and ought to be extended, while the other believes it is wrong and ought not be extended. This is the only substanial dispute".