which judicial principal does this passage from the Marbury versus Madison Supreme Court ruling illustrate?

A fact is a statement that is true and it can be judged objectively. So that, a fact is true and correct in all circumstances. An opinion, however, is a statement that based on a belief; it shows how someone feels. Indeed, opinion and fact are not synonyms. Both opinion and fact applied in education. Therefore, in research you can use both of them. An opinion is not always true. Therefore, it cannot be proven. It shows that the last option is not true. Opinion is not important than facts. Opinions can be based on facts. It shows that facts and opinions are not in opposition.