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About this quote

What does it mean?
Assuming you already know something blocks the discovery of truth.
In plain terms
Thinking you know it all blocks learning.
What can you take from it?
Stay open to new information.

Where it applies

  • research
  • debate
  • self‑reflection

Putting it to work

  • question your assumptions
  • seek contrary evidence

Questions to consider

  • When have you been convinced you knew something?
  • What changed your view?

Another view

Sometimes confidence is needed to act decisively.

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