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About this quote

What does it mean?
Doubt is a fundamental human invention comparable to fire.
In plain terms
Learning to question things is as important as learning to use fire.
What can you take from it?
Value doubt as a tool for progress.

Where it applies

  • education
  • research
  • problem solving

Putting it to work

  • question assumptions
  • encourage debate
  • test ideas

Questions to consider

  • How has doubt helped you learn?
  • Is doubt a sign of weakness or strength?

Another view

It elevates doubt over faith which may unsettle some.

More from Thomas Henry Huxley

  1. 'The mediaeval university looked backwards: it professed to be a storehouse of old knowledge... The modern university looks forward: it is a factory of new kno…

    Permalink to quote #33
  2. THH poem in letter to J.D. Hooker 4th Dec 1894 on hearing that JDH's son had fallen into a salt vat. Huxley papers at Imperial College London HP 2.454.

    Permalink to quote #35
  3. 'I do not advocate burning your ship to get rid of the cockroaches'.

    Permalink to quote #32

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