It's more interesting to read about something being wrong than everything being right. Happiness threatens the things that every writing workshop demands: suspense, conflict, desire. It also threatens particularity. Happiness collapses characters into people who look just like everyone else, without the sharper contours of pathos to mark their edges and render them distinct. As Tolstoy famously tells us at the beginning of Anna Karenia: "All happy families are alike; each unhappy family is unhappy in its own way."
Leslie Jamison, "Bookends," The New York Times Book Review, March 16, 2014