Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.
Never underestimate the power of stupid people in large groups.
Nothing in the world is more dangerous than sincere ignorance and conscientious stupidity.
I am patient with stupidity but not with those who are proud of it.
Egotism is the anesthetic that dulls the pain of stupidity.
Life is tough, but it's tougher when you're stupid.
The difference between stupidity and genius is that genius has its limits.
Talk sense to a fool and he calls you foolish.
When a stupid man is doing something he is ashamed of, he always declares that it is his duty.
I wish I were dumber so I could be more certain about my opinions. It looks fun.
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.
The two most common elements in the universe are hydrogen and stupidity.
If you pretend to be good, the world takes you very seriously. If you pretend to be bad, it doesn't. Such is the astounding stupidity of optimism.
Stupidity is far more dangerous than evil, for evil takes a break from time to time, stupidity does not.
Never underestimate the power of human stupidity.
One man alone can be pretty dumb sometimes, but for real bona fide stupidity, there ain't nothing can beat teamwork.
In politics stupidity is not a handicap.
Men are born ignorant, not stupid. They are made stupid by education.
Any man can make mistakes, but only an idiot persists in his error.
Only the wisest and stupidest of men never change.
The first method for estimating the intelligence of a ruler is to look at the men he has around him.
Stupidity has a knack of getting its way.
There is nothing worse than aggressive stupidity.
There's a fine line between fishing and just standing on the shore like an idiot.
To forget one's purpose is the commonest form of stupidity.
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