"If a writer knows enough about what he is writing about, he may omit things that he knows. The dignity of movement of an iceberg is due to only one ninth of it being above water"

This quote by Ernest Hemingway is a metaphor for the power of suggestion. He is recommending that when a writer has a deep understanding of their subject matter, they can overlook information and still communicate the exact same message. The iceberg is a sign of this idea, as just one ninth of it shows up above the water, yet it still has an effective presence. Hemingway is recommending that a writer can utilize this very same method to develop a powerful effect with their writing. By excluding information, the writer can develop a sense of secret and intrigue, allowing the reader to complete the blanks and draw their own conclusions. This quote is a reminder that sometimes less is more, and that a writer can develop a powerful impact with their words by excluding details.