Complex sentence: From an early age, Nash was fascinated with the world of journalism: by age 8, he was writing his own news sheet, by age 9 he was writing letters to the editors of Toronto newspapers, and by age 10 he was operating a newstand.
Split into simpler sentences: From an early age, Nash was fascinated with the world of journalism. By age 8, he was writing his own news sheet, by age 9 he was writing letters to the editors of Toireonto newspapers, and by age 10 he was operating a newstand.