“No Constitution is the same on Paper and in Life,” wrote Gouverneur Morris of Pennsylvania, who penned the Constitution’s final draft. What he meant was that words on paper do not change, but life does. The world changes.
For example, the framers couldn’t imagine television or the Internet. How should freedom of the press be applied to those media? The nine justices of the Supreme Court have the job of interpreting the Constitution in a changing world. They decide if acts of Congress and the president are allowed by the Constitution. This is called judicial review.