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David Hume

The Great Skeptic

David Hume

1711–1776 · Edinburgh · European

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A Scottish philosopher and historian who argued that our beliefs about causes rest on custom, not reason, and that morality springs from sentiment.

Key work: An Enquiry Concerning Human Understanding (1748)

“Reason is, and ought only to be the slave of the passions.”

A Treatise of Human Nature, book 2, part 3, section 3

Key ideas, in brief (in our words)

  • Habit, not reason, guides most of what we expect.

  • Believe as strongly as the evidence allows, and no more.

  • An ought cannot be drawn from an is alone.

Read more: Stanford Encyclopedia of Philosophy

On the climb

Empiricism

Is and OughtThe Watch on the HeathTaste and DisagreementExtraordinary ClaimsThe TraceCustom, the Guide of LifeTrusting Others

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