There's nothing more dangerous than a resourceful idiot.
Sentiment: NEGATIVE
A left-wing idiot is as dangerous as a right-wing idiot.
Nothing in all the world is more dangerous than sincere ignorance and conscientious stupidity.
Nothing is as dangerous as an ignorant friend; a wise enemy is to be preferred.
The most dangerous people are the ignorant.
People are dangerous when they have nothing to lose.
There is nothing more dangerous than the conscience of a bigot.
If a little knowledge is dangerous, where is the man who has so much as to be out of danger?
Money without brains is always dangerous.
To a liar, the most dangerous individual is the person who catches lies but doesn't say anything about it. Then the liar isn't sure which lies are compromised.
Ignorance per se is not nearly as dangerous as ignorance of ignorance.