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.]

The only thing more expensive than education is ignorance.

The only thing more expensive than education is ignorance.

The greatest obstacle to discovery is not ignorance - it is the illusion of knowledge.

The greatest obstacle to discovery is not ignorance - it is the illusion of knowledge.

. . where ignorance is bliss, 'Tis folly to be wise.

. . where ignorance is bliss, 'Tis folly to be wise.

Ignorance is not bliss - it is oblivion

Ignorance is not bliss - it is oblivion

To be ignorant of one's ignorance is the malady of the ignorant.

To be ignorant of one's ignorance is the malady of the ignorant.

Ignorance and inconsideration are the two great causes of the ruin of mankind

Ignorance and inconsideration are the two great causes of the ruin of mankind

The highest form of ignorance is when you reject something you don't know anything about.

The highest form of ignorance is when you reject something you don't know anything about.

If I don't have wisdom, I can teach you only ignorance.

If I don't have wisdom, I can teach you only ignorance.