A great deal of intelligence can be invested in ignorance when the need for illusion is deep.

 -Saul Bellow

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

 -Daniel Boorstin

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

 -Confucius

His ignorance is encyclopedic.

 -Abba Eban

His ignorance covered the whole earth like a blanket, and there was hardly a hole in it anywhere.

 -Mark Twain

He knows so little and knows it so fluently.

-Ellen Glasgow

To a man with a hammer, everything looks like a nail.

-anonymous

I like to think of my best moments on the job as quiet victories. Victories over what? Over the "system," over the various bureaucracies not watching me, over my colleagues' indifference, over my patron's ignorance, over the very concept of horn-blowing pride.

 -Paul Weiner

The evil that is in the world almost always comes of ignorance, and good intentions may do as much harm as malevolence if they lack understanding.

 -Albert Camus

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

-Martin Luther King, Jr

We fear things in proportion to our ignorance of them.

-Titus Livius

An age is called Dark, not because the light fails to shine, but because people fail to see it.

 -James Michener

Ignorance is a voluntary misfortune.

 -Nicholas Ling

Not ignorance, but ignorance of ignorance, is the death of knowledge.

 -Alfred North Whitehead

Two things are infinite: the universe and human stupidity; and I'm not sure about the universe.

 -Albert Einstein

A great many people mistake opinions for thoughts.

 -Herbert Prochnow

Everybody is ignorant, only on different subjects.

 -Will Rogers