Review the following quote and summarize into your own words. Make sure to include what concept this quote refers to from the lesson.

"It is emphatically the province and duty of the Judicial Department to say what the law is... If two laws conflict with each other, the Courts must decide on the operation of each. So, if a law be in opposition to the Constitution... the Court must determine which of these conflicting rules governs the case. This is of the very essence of judicial duty."

~ Chief Justice Marshall, Marbury v. Madison, 1803.