A.E. Houseman:

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

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.

Will Durant:

Education is a progressive discovery of our own ignorance.