Associated Press - November 17, 2009 2:25 PM ET

COLUMBUS, Ohio (AP) - U.S. Supreme Court Justice Antonin Scalia plans a speech at Ohio State University on the interpretation of the Constitution.

Scalia was to deliver the keynote speech Tuesday at a daylong forum on the concept of originality, or the theory that the Constitution should be interpreted as its authors intended.

Seventy-3-year-old Scalia is a justice known for his generally conservative rulings. He was appointed to the court by President Ronald Reagan.

U.S. Justice Ruth Bader Ginsburg spoke at the Ohio State law school in April.

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