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About this quote

What does it mean?
There is no reliable metric to definitively separate humans from animals.
In plain terms
We cannot find a safe way to distinguish humans from animals.
What can you take from it?
Recognize the blurred line between human and animal nature.

Where it applies

  • philosophical debate
  • scientific classification
  • ethical discussions

Putting it to work

  • studying evolution
  • discussing animal rights
  • reading philosophy

Questions to consider

  • What makes us uniquely human?
  • Is the difference real or imagined?

Another view

Modern science often uses DNA to distinguish humans from other species.

More from Fernando Pessoa

  1. Nature is the difference between the soul and God.

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  2. Irony is the first hint that consciousness became conscious.

    Permalink to quote #93
  3. The perfect man of pagans was the perfection of the man there is; the perfect man of christians, the perfection of the man there isn't; the buddhists' perfect …

    Permalink to quote #90

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