There are an amazing number of mis-conceptions about the Constitution and what it says. This post by U.S. Constitution.net has a pretty good rundown of some of the most famous. Some of the mis-quotes I hear most often are “separation of church and state”, “right to privacy”, and “Judicial Review.” One that is not in the list is right for the press to protect their sources identity in court.
However, it is important to remember that the constitution DOES say (in the 10th Amendment) that
“The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people.”
Thus we have rights regardless of their explicit existance in the constiution.