[Theory is] an explanation that has been confirmed to such a degree, by observation and experiment, that knowledgeable experts accept it as fact. That's what scientists mean when they talk about a theory: not a dreamy and unreliable speculation, but… — David Quammen Copy Share Image
![“[Theory is] an explanation that has been confirmed to such a degree, by observation and experiment, that knowledgeable experts accept it as fact. That's what scientists mean when they talk about a theory: not a dreamy and unreliable speculation, but an explanatory statement that fits the evidence…” quote by David Quammen](https://sms4smile.com/quotes/img-quotes/e66/david-quammen-9256_accepting_theory-is-an-explanation-that-has-been-c_2604502.jpg)