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About this quote

What does it mean?
If a difference has no practical impact or observable consequence, it is essentially meaningless.
In plain terms
If something makes no real change, it is not a real difference.
What can you take from it?
Focus only on differences that have practical consequences.

Where it applies

  • debating abstract concepts
  • evaluating arguments
  • making decisions

Putting it to work

  • ask for practical effects
  • ignore irrelevant distinctions
  • test for consequences

Questions to consider

  • Does this distinction change how you act?
  • What observable difference does this make?

Another view

Some abstract differences may matter internally even if they lack external effects.

More from William James

  1. The greatest discovery of my generation is that a human being can alter his life by altering his attitude.

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  2. A great many people think they are thinking when they are merely rearranging their prejudices.

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  3. 'I saw a moving sight the other morning before breakfast in a little hotel where I slept in the dusty fields.The young man of the house shot a little wolf call…

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