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The human understanding when it has once adopted an opinion (either as being the received opinion or as being agreeable to itself) draws all things else to support and agree with it. And though there be a greater number and weight of instances to be found on the other side, yet these it either neglects and despises, or else by some distinction sets aside and rejects, in order that by this great and pernicious predetermination the authority of its former conclusions may remain inviolate.

Francis Bacon#42

TruthPsychologyBiasReasoningEvidenceOpinion

About this quote

What does it mean?
Once the mind adopts an opinion, it seeks supporting evidence and rejects opposing data to preserve its conclusions.
In plain terms
Once you believe something, you look for proof and ignore what disagrees.
What can you take from it?
Avoid confirmation bias by actively seeking opposing views.

Where it applies

  • debating
  • research
  • decision making

Putting it to work

  • testing beliefs
  • seeking counterarguments

Questions to consider

  • How do you test your own opinions?
  • Why do people resist changing minds?

Another view

Sometimes strong prior knowledge does guide efficient reasoning.

More from Francis Bacon

  1. The human understanding is of its own nature prone to suppose the existence of more order and regularity in the world than it finds. And though there be many t…

    Permalink to quote #41
  2. :it is the peculiar and perpetual error of the human understanding to be more moved and excited by affirmatives than by negatives:

    Permalink to quote #43
  3. Lastly, there are Idols which have immigrated into men's minds from the various dogmas of philosophies, and also from wrong laws of demonstration. These I call…

    Permalink to quote #40

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