However, each person who benefits from being in a society has an obligation to defend the society from injury. Mill's principle is too vague to be useful. It gives no clear indication about where one draws the line between harm, offense, and private beliefs about decency and good manners. In particular, it fails to distinguish clearly between what is private and what is public. This might be due to the fact that everything we do affects others in some way or other.
Education can liberate minds from superstitious religious and political dogmas.
An educated population would support wise public policies that aim at the greatest happiness for the greatest number. By spelling out the characteristics of these concepts, we are able to situate the thinkers we have studied. Authoritarian Plato is a conservative-authoritarian. Hobbes is a liberal-authoritarian. Locke is a liberal-libertarian.