Just a few of the ideas that this seminal text brought to the fore:
- The Marketplace of Ideas
- The Harm Principle
- Utilitarianism as the moral mechanism of social policy
One of my all-time favorite pieces of political philosophy. I wish more people (not just philosophers or political scientists) took the time to read it. Also consider checking out Hobbes' Leviathan[1] and Rousseau's On the Social Contract[2].
[1] https://www.gutenberg.org/files/3207/3207-h/3207-h.htm
[2] https://www.gutenberg.org/files/46333/46333-h/46333-h.htm