Science Quote by Philip C. Plait
““I am using the word theory as a scientist means it: a set of ideas so well established by observations and physical models that it is essentially indistinguishable from fact. That is different from the colloquial use that means "guess." To a scientist, you can bet your life on a theory. Remember, gravity is "just a theory" too.””
![“[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)
