What is the primary theme of The Phantom Tollbooth?

• A. The dangers of greed.
• B. The power of imagination.
• C. The value of wealth.
• D. The value of learning and curiosity.

Answer: (D)

The central idea is that learning and curiosity drive real growth. Milo starts out bored and disengaged, but his journey through the kingdoms of words and numbers shows that seeking understanding, asking questions, and solving problems transforms how he sees the world. The adventures demonstrate that engaging with ideas—reading, exploring, and thinking critically—opens up new possibilities and makes life feel meaningful. Imagination supports this process, helping Milo navigate puzzles and journeys, but the lasting message is that curiosity and a quest for knowledge are what turn a dull trip into a worthwhile one. Wealth or possessions aren’t the focus; the story treats learning as the most valuable resource.