Stupidity quotes

The difference between genius and stupidity is that genius has its limits. - Albert Einstein

Only two things are infinite, the universe and human stupidity, and I’m not sure about the former. - Albert Einstein

Most fools think they are only ignorant. - Benjamin Franklin

I will not teach a man who is not anxious to learn, and will not explain to one who is not trying to make things clear to himself.  If I hold up one corner of a square and a man cannot come back to me with the other three, I won’t bother to go over the point again. - Confucius

Those who know, and know that they know, are wise.  You may follow them.  Those who know not, and know that they know not, are smart.  You can teach them.  Those who know not, and know not that they know not, are dumb.  You must leave them. - Native American Proverb