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About this quote

What does it mean?
Chesterton argues that extreme self-confidence often borders on madness, suggesting that those who believe in themselves most strongly are often found in asylums.
In plain terms
People who believe too much in themselves are usually crazy.
What can you take from it?
Extreme self-belief can be a sign of mental instability.

Where it applies

  • evaluating self-help claims
  • understanding extreme personalities

Putting it to work

  • assessing confidence levels
  • recognizing delusion

Questions to consider

  • Where is the line between confidence and delusion?
  • How do we define sanity in self-belief?

Another view

The quote generalizes about mental health without clinical evidence.

More from Gilbert Keith Chesterton

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  2. Imagination does not breed insanity. Exactly what does breed insanity is reason. Poets do not go mad; but chess-players do. Mathematicians go mad, and cashiers…

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  3. For fear of the newspapers politicians are dull, and at last they are too dull even for the newspapers. The speeches in our time are more careful and elaborate…

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