Bill Phillis is a champion of public schools. He writes: "Tax-supported vouchers and charters are foreign to the common school system required by the constitution. They are not only foreign to the system, but are parasitical in taking funds away from the common system. These schemes divide, rather than unite. They serve not all, but selected students. Their goal does not necessarily match the goal of the common system—to maintain the republican form of government. Their relationship to the community is often strained or non-existent, as opposed to symbiotic. A primary purpose for the creation of the common school system for all the children of all the people was to maintain a republican form of government. Knowledgeable people in unity with one another will ward off tyranny, in favor of liberty and equality. A virtuous government operating for the common good is the goal."