Just Ain’t So – Knowledge Quotes

It ain’t what you don’t know that gets you into trouble. It’s what you know for sure that just ain’t so.

Atr. Mark Twain

To know that we know what we know, and to know that we do not know what we do not know, that is true knowledge.

Nicolaus Copernicus

To acquire knowledge, one must study; but to acquire wisdom, one must observe.

Marilyn vos Savant

I think we risk becoming the best informed society that has ever died of ignorance.

Ruben Blades

The true sign of intelligence is not knowledge but imagination.

Albert Einstein

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


Our knowledge can only be finite, while our ignorance must necessarily be infinite.

Karl Popper

All our knowledge has its origins in our perceptions.

Leonardo da Vinci

Without self-knowledge, without understanding the working and functions of his machine, man cannot be free, he cannot govern himself and he will always remain a slave.

George Gurdjieff

Science is the father of knowledge, but opinion breeds ignorance.


The degree of one’s emotions varies inversely with one’s knowledge of the facts.

Bertrand Russell

Knowledge without justice ought to be called cunning rather than wisdom.


The true method of knowledge is experiment.

William Blake

Knowledge is knowing that we cannot know.

Ralph Waldo Emerson

The good life is one inspired by love and guided by knowledge.

Bertrand Russell

There comes a time when the mind takes a higher plane of knowledge but can never prove how it got there.

Albert Einstein

Knowledge is knowing that a tomato is a fruit. Wisdom is knowing not to put it in a fruit salad.

Brian O’Driscoll

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

Daniel J. Boorstin

The saddest aspect of life right now is that science gathers knowledge faster than society gathers wisdom.

Isaac Asimov

Some people drink from the fountain of knowledge, others just gargle.

Robert Anthony

Integrity without knowledge is weak and useless, and knowledge without integrity is dangerous and dreadful.

Samuel Johnson

Knowledge speaks, but wisdom listens.

Jimi Hendrix