Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.
The doctor sees all the weakness of mankind; the lawyer all the wickedness, the theologian all the stupidity.
Do not ever say that the desire to 'do good' by force is a good motive. Neither power lust nor stupidity are good motives.
Money demands that you sell, not your weakness to men's stupidity, but your talent to their reason.
I hate war as only a soldier who has lived it can, only as one who has seen its brutality, its futility, its stupidity.
Genius may have its limitations, but stupidity is not thus handicapped.
Stupid as a man, say the women: cowardly as a woman, say the men. Stupidity in a woman is unwomanly.
In a closed society where everybody's guilty, the only crime is getting caught. In a world of thieves, the only final sin is stupidity.
Nothing in all the world is more dangerous than sincere ignorance and conscientious stupidity.
I never had that feeling that I had to carry the weight of somebody's ignorance around with me. And that was true for racists who wanted to use the 'n' word when talking about me or about my people, or the stupidity of people who really wanted to belittle other folks because they weren't pretty or they weren't rich or they weren't clever.