The Little Engine That Could

The Little Engine That Could is an American folktale and story to teach children the value of optimism and hard work. It is best known for its signature motif: "I think I can!" The story originated in the early 20th century being retold by various authors, including Mary C. Jacobs. It was first referred to as its well known title in a 1920 edition published within the My Book House series. The most widely known version by Arnold "Watty Piper" Munk was published in 1930 by Platt & Munk. The 1930 version entered the American public domain on January 1, 2026.