Thank you for the correction. Stephens' book is in two volumes, and I assumed that the online source I looked at represented both volumes. Interesting thing about the link you provide, though; it STILL doesn't say what DiLorenzo says it does. Stephens never puts the words "Root, hog, or die" in Lincoln's mouth.
My apologies, you have been alerted to the fact that their are two volumes.
Here is another version of the story as related by an editor who said he heard it directly from Lincoln shortly after the Hampton Roads conference. "Root, hog, or die" version