In 'The Ethics of Liberty', philosopher Murray Rothbard presents a radical libertarian perspective on civil liberties and the role of government. Rothbard argues that individual rights are absolute and that any infringement on these rights is a violation of ethical principles. He explores various topics, including the right to property, freedom of speech, and the limits of state power. This provocative book challenges conventional notions of civil liberties and offers a unique ethical framework for understanding their importance in society.