Never underestimate the power of stupid people in large groups.
It’s too bad that stupidity isn’t painful.
The trouble with the world is that the stupid are cocksure and the intelligent are full of doubt.
Talk sense to a fool and he calls you foolish.
I am patient with stupidity but not with those who are proud of it.
Egotism is the anesthetic that dulls the pain of stupidity.
When a stupid man is doing something he is ashamed of, he always declares that it is his duty.
It is dangerous to be sincere unless you are also stupid.
To be stupid, selfish, and have good health are three requirements for happiness, though if stupidity is lacking, all is lost.
Whenever a man does a thoroughly stupid thing, it is always from the noblest motives.
There is more stupidity than hydrogen in the universe, and it has a longer shelf life.
There is nothing worse than aggressive stupidity.
If Stupidity got us into this mess, then why can't it get us out?
The two most common elements in the universe are hydrogen and stupidity.
Genius may have its limitations, but stupidity is not thus handicapped.
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?
Nothing in the world is more dangerous than sincere ignorance and conscientious stupidity.
Anyway, no drug, not even alcohol, causes the fundamental ills of society. If we're looking for the source of our troubles, we shouldn't test people for drugs, we should test them for stupidity, ignorance, greed and love of power.
We're in a giant car heading towards a brick wall and everyone's arguing over where they're going to sit.
Only the wisest and stupidest of men never change.
Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.
He is not only dull himself, but the cause of dulness in others.
To be stupid, and selfish, and to have good health are the three requirements for happiness.
Personally, I have a great admiration for stupidity.
I couldn't repair your brakes, so I made your horn louder.
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