The difference between stupidity and genius is that genius has its limits.
Nothing in the world is more dangerous than sincere ignorance and conscientious stupidity.
A stupid man's report of what a clever man says can never be accurate, because he unconsciously translates what he hears into something he can understand.
Never underestimate the power of stupid people in large groups.
The trouble with the world is that the stupid are cocksure and the intelligent are full of doubt.
In view of the fact that God limited the intelligence of man, it seems unfair that He did not also limit his stupidity.
There is nothing more frightful than ignorance in action.
Real stupidity beats artificial intelligence every time.
It is difficult to get a man to understand something when his salary depends upon his not understanding it.
If fifty million people say a foolish thing, it is still a foolish thing.
A great deal of intelligence can be invested in ignorance when the need for illusion is deep.
Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.
There is more stupidity than hydrogen in the universe, and it has a longer shelf life.
Any fool can make a rule, and any fool will mind it.
People demand freedom of speech as a compensation for the freedom of thought which they seldom use.
Human beings, who are almost unique in having the ability to learn from the experience of others, are also remarkable for their apparent disinclination to do so.
There is nothing worse than aggressive stupidity.
Man has made use of his intelligence; he invented stupidity.
If there are no stupid questions, then what kind of questions do stupid people ask? Do they get smart just in time to ask questions?
So far as I can remember, there is not one word in the Gospels in praise of intelligence.
A great many people think they are thinking when they are merely rearranging their prejudices.
Lottery: A tax on people who are bad at math.
Real knowledge is to know the extent of one's ignorance.
Great spirits have always found violent opposition from mediocre minds. The latter cannot understand it when a man does not thoughtlessly submit to hereditary prejudices but honestly and courageously uses his intelligence.
The two most common elements in the universe are hydrogen and stupidity.
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