A.E. Houseman:

Three minutes thought would suffice to find this out; but thought is irksome and three minutes is a long time.

Abraham Lincoln:

If you once forfeit the confidence of your fellow citizens, you can never regain their respect and esteem. It is true that you may fool all of the people some of the time; you can even fool some of the people all of the time; but you can't fool all of the people all of the time.

Aggie Pate:

I didn't know Onward Christian Soldiers was a Christian song.

at a non-denominational mayor's breakfast, Fort Worth, Texas

Albert Einstein:

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

Alexander Pope:

A little learning is a dangerous thing; drink deep, or taste not the Pierian spring: there shallow draughts intoxicate the brain, and drinking largely sobers us again.

probably the source of the saying, "a little knowledge is a dangerous thing"

Amos Bronson Alcott:

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

Blaise Pascal:

You always admire what you really don't understand.

Daniel Boorstin:

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

Daniel J Boorstin:

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

Dorothy Thompson:

Disillusion comes only to the illusioned. One cannot be disillusioned of what one never put faith in.

George Eliot:

Blessed is the man who, having nothing to stay, abstains from giving us worthy evidence of the fact.

Henry B. Adams:

Nothing in education is so astonishing as the amount of ignorance it accumulates in the form of inert facts.

Henry David Thoreau:

True friendship can afford true knowledge. It does not depend on darkness and ignorance.

Henry David Thoreau:

A man is wise with the wisdom of his time only, and ignorant with its ignorance.

Herbert V. Prochnow:

A great many people mistake opinions for thoughts.

James Michener:

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

Jimmy Buffett :

Is it ignorance or apathy? Hey, I don't know and I don't care.

Joe Theisman:

The word "genius" isn't applicable in football. A genius is a guy like Norman Einstein.

NFL football quarterback and sports analyst

Ma Ferguson:

If the King's English was good enough for Jesus, it's good enough for me!

Governor of Texas (circa 1920)

Martin Luther King, Jr.:

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

Matthew 15:14:

If the blind lead the blind, both shall fall into the ditch.

Molly Ivins:

I believe that ignorance is the root of all evil. And that no one knows the truth.

Pema Chodron:

What's encouraging about meditation is that even if we shut down, we can no longer shut down in ignorance. We see very clearly that we're closing off. That in itself begins to illuminate the darkness of ignorance.

Thomas Jefferson:

Ignorance is preferable to error, and he is less remote from the truth who believes nothing than he who believes what is wrong.

Thomas Paine:

A long habit of not thinking a thing wrong gives it a superficial appearance of being right.

Will Durant:

Education is a progressive discovery of our own ignorance.