This text discusses the principle that individuals should only be compelled or controlled by society through force or social pressure to prevent harm to others, not for their own benefit. It asserts that an individual's liberty can only rightfully be interfered with for self-protection purposes. The only justification for exercising power over someone against their will is to prevent harm to others, as their own good is not a sufficient reason to compel them to act in a certain way or restrain them.