Something I've discovered over the last few months while having conversations with people about the conception of individual freedom, rights and liberty: Understanding 'natural rights' and 'natural law' is crucial in making a rational, unemotional case for any of those things.
Some material to read about them:
'Introduction to Natural Law' excerpt from Rothbard's book 'Ethics of liberty'.
https://mises.org/mises-daily/introduction-natural-law
'Law, Property Rights and Air Pollution', a standalone article by Rothbard.
https://mises.org/mises-daily/law-property-rights-and-air-pollution
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