Nothing in all the world is more dangerous than sincere ignorance and conscientious stupidity.

Nothing in all the world is more dangerous than sincere ignorance and conscientious stupidity.

Ignorance is innocence - stupidity comes with experience

Ignorance is innocence - stupidity comes with experience

There is only one evil: ignorance.

There is only one evil: ignorance.

Real knowledge is to know the extent of one's ignorance.

Real knowledge is to know the extent of one's ignorance.

Gross ignorance: 144 times worse than ordinary ignorance.

Gross ignorance: 144 times worse than ordinary ignorance.

The only thing more expensive than education is ignorance.

The only thing more expensive than education is ignorance.

I am not ashamed to confess that I am ignorant of what I do not
know.
[Lat., Non read more

I am not ashamed to confess that I am ignorant of what I do not
know.
[Lat., Non me pudet fateri nescire quod nesciam.]

Unintelligent people always look for a scapegoat.

Unintelligent people always look for a scapegoat.

Never let your persistence and passion turn into stubbornness and ignorance.

Never let your persistence and passion turn into stubbornness and ignorance.