It is the peculiar province of the legislature to prescribe general rules for the government of society; the application of those rules to individuals in society would seem to be the duty of other departments.
John MarshallThe people made the Constitution, and the people can unmake it. It is the creature of their own will, and lives only by their will.
John MarshallThe constitution is either a superior paramount law, unchangeable by ordinary means, or it is on a level with ordinary legislative acts, alterable when the legislature shall please to alter it. It is emphatically the province and duty of the judicial department to say what the law is. This is the very essence of judicial duty.
John Marshall