One of the virtues of being very young is that you don't let the facts get in the way of your imagination.

Levenson wryly praises a quality of youth: the ability to imagine freely without being constrained by what is “realistic” or already known. The line suggests that inexperience can be a creative advantage, because it leaves room for bold conjecture, play, and aspiration—things that older, fact-bound minds may dismiss too quickly. At the same time, the humor depends on a gentle paradox: ignoring facts is not a virtue in most adult settings, yet it can be fruitful in the realm of invention and possibility. The quote thus celebrates imaginative openness while hinting at the eventual trade-off between knowledge and wonder.