One True Sentence Principle

The One True Sentence Principle turns a writing impasse into a concrete task: find one true sentence and let the story grow from it. In Ernest Hemingway’s account, the rule joins observation to disciplined composition; it is not merely a prompt to begin, but a way to distinguish usable material from decorative writing.

The Rule

When a new story would not get going, Hemingway sometimes sat by the fire and squeezed the peel of small oranges into its edge, watching the blue sputter. Looking out over the roofs of Paris, he reminded himself, “All you have to do is write one true sentence. Write the truest sentence that you know.” The sentence could come from something he knew, had seen, or had heard someone say. Its truth gave him a starting point, and once he had written it, he found it easy to go on.

Cutting Ornament

The principle also supplied a test for revision. If Hemingway began writing elaborately, or in the manner of someone introducing or presenting a subject, he cut away the scrollwork and discarded it. He returned instead to the first true, simple declarative sentence he had written. The method therefore made plainness an active choice: not an absence of craft, but a way to remove language that delayed the story’s contact with its material.

Discipline and Scope

In the same room, Hemingway resolved to write one story about each thing he knew. He describes trying to follow this aim throughout his work and calls it “good and severe discipline.” The rule’s movement—from a single sentence toward a story rooted in knowledge—makes the beginning manageable without treating it as the whole achievement. A true sentence starts the work; sustained attention to known material gives that work its direction.