Hamilton suggests that tyranny often can hide behind a mask of concern for the rights of the people. He said: "On the other hand, it will be equally forgotten that the vigor of government is essential to the security of liberty; that, in the contemplation of a sound and well-informed judgment, their interest can never be separated; and that a dangerous ambition more often lurks behind the specious mask of zeal for the rights of the people than under the forbidden appearance of zeal for the firmness and efficiency of government."

The Founding Fathers were very familiar with tyranny and human motivation. They recognized that tyrants often covered they tyranny with a claim to protect the rights of some people. Remember, Hitler claimed that he was invading other countries to protect the rights of ethnic Germans. Others may claim protecting other's rights while only working to gain profit and power. It was their understanding of human nature that led them to write checks and balances into the Constitution.
Question: What motives may be behind an outward concern for the rights of the people?
Source: Federalist No. 1