Late Bloomers.

Ben Fountain was an associate in the real-estate practice at the Dallas offices of Akin, Gump, Strauss, Hauer & Feld, just a few years out of law school, when he decided he wanted to write fiction. The only thing Fountain had ever published was a law-review article. His literary training consisted of a handful of creative-writing classes in college. He had tried to write when he came home at night from work, but usually he was too tired to do much. He decided to quit his job.

"I was tremendously apprehensive," Fountain recalls. "I felt like I'd stepped off a cliff and I didn't know if the parachute was going to open. Nobody wants to waste their life, and I was doing well at the practice of law. I could have had a good career. And my parents were very proud of me--my dad was so proud of me. . . . It was crazy."

He began his new life on a February morning--a Monday. He sat down at his kitchen table at 7:30 A.M. He made a plan. Every day, he would write until lunchtime. Then he would lie down on the floor for twenty minutes to rest his mind. Then he would return to work for a few more hours. He was a lawyer. He had discipline. "I figured out very early on that if I didn't get my writing done I felt terrible. So I always got my writing done. I treated it like a job. I did not procrastinate." His first story was about a stockbroker who uses inside information and crosses a moral line. It was sixty pages long and took him three months to write. When he finished that story, he went back to work and wrote another--and then another.

In his first year, Fountain sold two stories. He gained confidence. He wrote a novel. He decided it wasn't very good, and he ended up putting it in a drawer. Then came what he describes as his dark period, when he adjusted his expectations and started again. He got a short story published in Harper's. A New York literary agent saw it and signed him up. He put together a collection of short stories titled "Brief Encounters with Che Guevara," and Ecco, a HarperCollins imprint, published it. The reviews were sensational. The Times Book Review called it "heartbreaking." It won the Hemingway Foundation/PEN award. It was named a No. 1 Book Sense Pick. It made major regional best-seller lists, was named one of the best books of the year by the San Francisco Chronicle, the Chicago Tribune, and Kirkus Reviews, and drew comparisons to Graham Greene, Evelyn Waugh, Robert Stone, and John le Carre.

Ben Fountain's rise sounds like a familiar story: the young man from the provinces suddenly takes the literary world by storm. But Ben Fountain's success was far from sudden. He quit his job at Akin, Gump in 1988. For every story he published in those early years, he had at least thirty rejections. The novel that he put away in a drawer took him four years. The dark period lasted for the entire second half of the nineteen-nineties. His breakthrough with "Brief Encounters" came in 2006, eighteen years after he first sat down to write at his kitchen table. The "young" writer from the provinces took the literary world by storm at the age of forty-eight.

Genius, in the popular conception, is inextricably tied up with precocity--doing something truly creative, we're inclined to think, requires the freshness and exuberance and energy of youth. Orson Welles made his masterpiece, "Citizen Kane," at twenty-five. Herman Melville wrote a book a year through his late twenties, culminating, at age thirty-two, with "Moby-Dick." Mozart wrote his breakthrough Piano Concerto No. 9 in E-Flat-Major at the age of twenty-one. In some creative forms, like lyric poetry, the importance of precocity has hardened into an iron law. How old was T. S. Eliot when he wrote "The Love Song of J. Alfred Prufrock" ("I grow old . . . I grow old")? Twenty-three. "Poets peak young," the creativity researcher James Kaufman maintains. Mihaly Csikszentmihalyi, the author of "Flow," agrees: "The most creative lyric verse is believed to be that written by the young." According to the Harvard psychologist Howard Gardner, a leading authority on creativity, "Lyric poetry is a domain where talent is discovered early, burns brightly, and then peters out at an early age."

A few years ago, an economist at the University of Chicago named David Galenson decided to find out whether this assumption about creativity was true. He looked through forty-seven major poetry anthologies published since 1980 and counted the poems that appear most frequently. Some people, of course, would quarrel with the notion that literary merit can be quantified. But Galenson simply wanted to poll a broad cross-section of literary scholars about which poems they felt were the most important in the American canon. The top eleven are, in order, ...