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About this quote

What does it mean?
Believing without evidence can lead to harmful outcomes.
In plain terms
Believing too easily can kill or harm people.
What can you take from it?
Avoid believing things without evidence.

Where it applies

  • news consumption
  • health decisions
  • social media

Putting it to work

  • fact check
  • question claims
  • verify sources

Questions to consider

  • How do you verify truth?
  • When do you trust others?

Another view

Sometimes trust is necessary for social function.

More from Carl Sagan

  1. It is far better to grasp the Universe as it really is than to persist in delusion, however satisfying and reassuring.

    Permalink to quote #62
  2. Think of how many religions attempt to validate themselves with prophecy. Think of how many people rely on these prophecies, however vague, however unfulfilled…

    Permalink to quote #64
  3. If we long to believe that the stars rise and set for us, that we are the reason there is a Universe, does science do us a disservice in deflating our conceits?

    Permalink to quote #61

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  3. It ain't necessarily so, It ain't necessarily so. De t'ings dat yo' li'ble To read in de Bible, It ain't necessarily so.

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