For ten points, name this philosophical work by Søren Kierkegaard about a crucial choice.
In this work's introduction, a nameless author uses an excerpt from Plutus to color "An Essay on the Theory of Social Prejudice." This book's first half includes "Shadowgraphs," "The Unhappiest One," and "The First Love," all ostensibly papers found by Victor Eremita and written by ‘A.' The second half of the book is composed a retired judge's ethical letters, while the pscudonym Johannes is used for perhaps the most famous section, "The Diary of the Seducer," which represents the first part of the titular duality. For ten points, name this philosophical work by Søren Kierkegaard about a crucial choice.
In this work's introduction, a nameless author uses an excerpt from Plutus to color "An Essay on the Theory of Social Prejudice."
{Either/Or}: A Fragment of Life (or {Enten-Eller}: et-livs fragment)