In Ray Bradbury's "The Illustrated Man," the theme of moderation is explored through the notion that an excess of anything can lead to negative consequences. This overarching message highlights the importance of balance in life. The wisdom behind the phrase suggests that indulgence or obsession with a particular aspect of existence can ultimately become detrimental, overshadowing the benefits that moderation can bring.

The quote encapsulates the idea that even the most enjoyable activities or passions can turn harmful if taken to extremes. By emphasizing the need for a balanced approach, Bradbury urges readers to reflect on their own lives and consider how they can cultivate harmony rather than excess. This serves as a reminder that true fulfillment often lies in moderation, rather than in extremes.