The strength of a theory is not what it allows, but what it prohibits; if you can invent an equally persuasive explanation for any outcome, you have zero knowledge.
I ask the fundamental question of rationality: Why do you believe what you believe? What do you think you know and how do you think you know it?
Interpretation
What this quote means
This quote challenges individuals to examine the foundations of their beliefs and the reasoning behind them.
Eliezer Yudkowsky's quote prompts deep reflection on the nature of belief and understanding. It encourages individuals to question the validity and origin of their convictions, emphasizing the importance of rational inquiry and critical thinking in the pursuit of knowledge. By asking the fundamental questions of what we believe and the basis for those beliefs, it stimulates a broader philosophical dialogue about epistemology—the study of knowledge and justified belief.
Themes
In practice
Example use cases
This quote could be used in a philosophical discussion group to encourage members to reflect on their belief systems.
More from Eliezer Yudkowsky
All quotes →Your strength as a rationalist is your ability to be more confused by fiction than by reality. If you are equally good at explaining any outcome, you have zero knowledge.
If our extinction proceeds slowly enough to allow a moment of horrified realization, the doers of the deed will likely be quite taken aback on realizing that they have actually destroyed the world. Therefore I suggest that if the Earth is destroyed, it will probably be by mistake.
In our skulls, we carry around 3 pounds of slimy, wet, greyish tissue, corrugated like crumpled toilet paper. You wouldn't think, to look at the unappetizing lump, that it was some of the most powerful stuff in the known universe.
[...] intelligent people only have a certain amount of time (measured in subjective time spent thinking about religion) to become atheists. After a certain point, if you're smart, have spent time thinking about and defending your religion, and still haven't escaped the grip of Dark Side Epistemology, the inside of your mind ends up as an Escher painting.
The obvious choice isn't always the best choice, but sometimes, by golly, it is. I don't stop looking as soon I find an obvious answer, but if I go on looking, and the obvious-seeming answer still seems obvious, I don't feel guilty about keeping it.
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The only proper purpose of a government is to protect man's rights, which means: to protect him from physical violence. A proper government is only a policeman, acting as an agent of man's self-defense, and, as such, may only resort to force only against those who start the use of force.
What we call real estate - the solid ground to build a house on - is the broad foundation on which nearly all the guilt of this world rests.
The world as pure object is something that is not there. It is not a reality outside us for which we exist....It is a living and self-creating mystery of which I am myself a part, to which I am myself, my own unique door.
Our whole business in this Life is to restore to health the eye of the heart whereby God may be seen.
Whenever nature leaves a hole in a person's mind, she generally plasters it over with a thick coat of self-conceit.
Yours is not the task of making your way in the world, but the task of remaking the world which you will find before you.