Quote by Massimo Pigliucci
If a theory purports to explain everything, then it is likely not explaining much at all.

Summary
This quote suggests that if a theory claims to provide an explanation for absolutely everything, it is probably not a comprehensive or meaningful explanation at all. The idea behind this statement is that theories should focus on specific phenomena or aspects within a given domain instead of attempting to cover every single detail of existence. It emphasizes that an overly broad and all-encompassing theory is unlikely to be accurate or useful, as complexity and diversity are inherent in the world, making it impossible for one theory to explain everything convincingly.