“Running on Empathy”: Three authors display various degrees of empathy in their depictions of Abraham Lincoln.  Walt Whitman, prose passages from Specimen Days, and “O Captain! My Captain.”  Kathleen Flenniken, “To Ease My Mind,” from Famous (U. of Nebraska Press, 2006), and used with kind permission of the author.  Leigh Stein, “Lincoln, Abraham, Melancholy Of,” from What To Miss When (New...