The Bill of Rights is the section of the Constitution that grants explicit power to the people. When Madison asked Jefferson what he thought of the Constitution, Jefferson felt it was a great design for a government but it offered nothing to the people. Jefferson felt that if the founders guaranteed rights to the people, that long term stability of the government was assured. Jefferson suggested they start with the things that had so infuriated the colonists against the British.
In short the first 10 Amendments are designed to limit the power of the government and to grant power to the people. It is a desecration that anything in the first 10 Amendments ever be used to expand the power of government. That is probably the most disturbing point in the eminent domain decision. The justices cited the amendments for the people to expand the power of the government.
Needs to be understood by everyone and taught in grammar school.