Everything is either true or not true, truth is that which does not contain any falseness. Everything that is not true is false.

Caesar non supra grammaticos“, “Caesar is not above grammarians” meaning that grammar (knowledge) comes before power.

The Difference Between Fact and Opinion

Facts are things that are the case for sure, they are stated plainly and without bias. Opinions meanwhile inject subjectivity and bias. Since most content in any form contains at least some subjectivity and bias, it is rare to find pure facts and common to find opinion.