We only have to look at ourselves to see how intelligent life might develop into something we wouldn't want to meet.
Stephen HawkingRead
I have experimental evidence that time travel is not possible.
Interpretation
What this quote means
Stephen Hawking asserts that time travel cannot occur based on scientific experiments.
In this quote, Stephen Hawking emphasizes the importance of empirical evidence in scientific inquiry, specifically stating that his research indicates the impossibility of time travel. This stark assertion challenges popular notions often depicted in science fiction, reinforcing that despite the allure of time travel, our current understanding of physics does not support its feasibility.
Themes
Time TravelScienceEmpirical EvidencePhysicsStephen Hawking
In practice
Example use cases
In a lecture on theoretical physics, you might reference Hawking's quote to emphasize the importance of evidence in scientific claims.
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In my opinion, there is no aspect of reality beyond the reach of the human mind.
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Similar quotes
That is the logical tight-rope on which we have to walk if we wish to interpret nature.
Richard P. FeynmanRead
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Since, then, there is no objection to the mobility of the Earth, I think it must now be considered whether several motions are appropriate for it, so that it can be regarded as one of the wandering stars. For the fact that it is not the centre of all revolutions is made clear by the apparent irregular motion of the wandering stars, and their variable distances from the Earth, which cannot be understood in a circle having the same centre as the Earth.
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I assert that the cosmic religious experience is the strongest and the noblest driving force behind scientific research.
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