But let a man know that there are things to be known, of which he
is ignorant, and it read more

But let a man know that there are things to be known, of which he
is ignorant, and it is so much carved out of his domain of
universal knowledge.

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.

The only thing more expensive than education is ignorance.

The only thing more expensive than education is ignorance.

There is nothing more frightful than an active ignorance.
[Ger., Es ist nichts schrecklicher als eine thatige
Unwissenheit.]

There is nothing more frightful than an active ignorance.
[Ger., Es ist nichts schrecklicher als eine thatige
Unwissenheit.]

Ignorance is innocence - stupidity comes with experience

Ignorance is innocence - stupidity comes with experience

Discussion is an exchange of knowledge; an argument an exchange of ignorance.

Discussion is an exchange of knowledge; an argument an exchange of ignorance.

There is no darkness but ignorance.

There is no darkness but ignorance.

Ignorance is not bliss - it is oblivion

Ignorance is not bliss - it is oblivion

I would prefer as friend a good man ignorant than one more clever who is evil too.

I would prefer as friend a good man ignorant than one more clever who is evil too.