- No one has the last say on anything (the principle of open-ended inquiry, where no authority can definitively settle a matter, and all claims are subject to challenge and revision).
- No one gets to say who gets to speak (the principle of equal access to the marketplace of ideas, where everyone has the right to express their views without being silenced by authority).
When assessing an argument or movement, ask: Does it uphold these principles? For example, does a critique seek to shut down debate by declaring certain ideas off-limits, or does it invite open challenge? Does it exclude voices based on ideology, or does it allow all perspectives to compete in the marketplace of ideas? If the answer is no to either question, the argument may be more about unraveling the fabric of liberal society than improving it.
- Publisher’s Website: The University of Chicago Press, which publishes the expanded edition (2013), provides details and purchasing options: University of Chicago Press – Kindly Inquisitors.
- Amazon: Available in paperback, Kindle, and audiobook formats: Amazon – Kindly Inquisitors.




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