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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Pay no heed to those who tell you that they have relinquished place and power of their own accord, and from their love of quiet. For almost always they have been brought to this retirement by their insufficiency and against their will.
Our hope is not in the man we put in the White House but in the Man we put on the Cross.
At first Babel longed for the use of just two words: Yes and No. But he knew that just to utter a single word would be to destroy the delicate fluency of silence.
What I think I learned from working on 'Moonlight' is you see what happens when you persecute people. They fold into themselves.
Be not angry that you cannot make others as you wish them to be, since you cannot make yourself as you wish to be.
To theology, ... only what it holds sacred is true, whereas to philosophy, only what holds true is sacred.