Here's why:
* Metaphor: A metaphor compares two unlike things without using words like "like" or "as."
* In this case: Childhood logic is being compared to something that doesn't need proof, like a natural law or an unquestionable truth.
The statement is suggesting that children accept things as they are without needing to understand the reasoning behind them. Their logic is simple, intuitive, and not based on complex reasoning or evidence.