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Books & big ideas

Can your belief survive its strongest opponent?

In On Liberty, Mill argues that a belief needs to face serious objections. Winning against a weak argument proves very little.

The idea

Test a belief against a serious objection, not just a weak version you can easily defeat.

An example

For a proposal to make training mandatory, a serious objection could ask whether the training is relevant to every role. A better defense would explain relevance or adjust the requirement. This example is our application of the reading.

Try it

Write a three-line argument: claim, strongest objection, and response. If the response is weak, revise the claim.

More context

One reading of On Liberty: a belief becomes more substantial when it faces serious objections. Repeating an inherited answer is different from understanding why it holds. Original reading note · interpretation, not an author quotation

Sources & further reading

John Stuart Mill · On Liberty

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