The difference between genius and stupidity is: genius has its limits.

The more stupid one is, the closer one is to reality. The more stupid one is, the clearer one is. Stupidity is brief and artless, while intelligence squirms and hides itself. Intelligence is unprincipled, but stupidity is honest and straightforward.

The stupider one is, the closer one is to reality. The stupider one is, the clearer one is. Stupidity is brief and artless, while intelligence wriggles and hides itself. Intelligence is a knave, but stupidity is honest and straightforward.

Stupidity is far more dangerous than evil, for evil takes a break from time to time, stupidity does not.

It is of first-rate importance to notice from the start that stupidity is not the same thing, or the same sort of thing, as ignorance. There is no incompatibility between being well-informed and being silly, and a person who has a good nose for arguments or jokes may have a bad head for facts.

The difference between ignorant and educated people is that the latter know more facts. But that has nothing to do with whether they are stupid or intelligent. The difference between stupid and intelligent people — and this is true whether or not they are well-educated — is that intelligent people can handle subtlety. They are not baffled by ambiguous or even contradictory situations — in fact, they expect them and are apt to become suspicious when things seem overly straightforward.

...the difference between stupid and ignorant was that ignorant could learn.

The difference between stupid and intelligent people — and this is true whether or not they are well-educated — is that intelligent people can handle subtlety. They are not baffled by ambigous or even contradictory situations — in fact, they expect them and are apt to become suspicious when things seem overly straightforward.

That fine line between bravery and stupidity is endlessly debated – the difference really doesn’t matter.

The difference between stupid and intelligent people – and this is true whether or not they are well-educated – is that intelligent people can handle subtlety.

Ignorance is not innocence but sin.

stupidity can be as bad as malice

Stupidity is a more dangerous enemy of the good than malice. One may protest against evil; it can be exposed and, if need be, prevented by use of force. Evil always carries within itself the germ of its own subversion in that it leaves behind in human beings at least a sense of unease. Against stupidity we are defenseless. Neither protests nor the use of force accomplish anything here; reasons fall on deaf ears; facts that contradict one’s prejudgment simply need not be believed – in such moments the stupid person even becomes critical – and when facts are irrefutable they are just pushed aside as inconsequential, as incidental. In all this the stupid person, in contrast to the malicious one, is utterly self satisfied and, being easily irritated, becomes dangerous by going on the attack. For that reason, greater caution is called for when dealing with a stupid person than with a malicious one. Never again will we try to persuade the stupid person with reasons, for it is senseless and dangerous.

There [is] no innocence more dangerous than the innocence of age.