Question

The greatest enemy of knowledge is nor ignorance it is the illusion of knowledge

Answer 1

Dear Quote Investigator: Widely accepted false beliefs can hinder progress and new discoveries. For example, the mistaken belief that heavier-than-air flying machines were impossible or impractical deterred requisite financing and investigation. This thought has been expressed as follows:

The greatest enemy of knowledge is not ignorance; it is the illusion of knowledge.
The famous physicist Stephen Hawking and the Librarian of the U.S. Congress Daniel J. Boorstin have both been credited with this statement, but I am having trouble finding good citations. Would you please help?

Quote Investigator: This saying was attributed to Stephen Hawking by 2001, but QI has been unable to find substantive evidence that he actually employed it.

The best-selling author, educator, and librarian Daniel J. Boorstin was interviewed in “The Washington Post” in January 1984. He modestly referred to himself as an amateur historian because his primary background was the legal profession. Boldface has been added to excerpts: 1

What an amateur is, is a lover of a subject. I’m a lover of facts. The fact is the savior, as long as you don’t jam it into some preconceived pattern. The greatest obstacle to discovery is not ignorance—it is the illusion of knowledge.
Boorstin employed different versions of the saying over the years, but he did not assert that the underlying idea was his own. Indeed, he once ascribed a similar notion to the well-known historian Edward Gibbon, and on another occasion, he called it an aphorism. Detailed citations are given further below.

Here are additional selected citations in chronological order.

In 1861 the second volume of the “History of Civilization in England” by the prominent historian Henry Thomas Buckle was released. The geological formation of the Earth was discussed, and Buckle noted that multiple flawed and conflicting theories had been developed. Yet, he welcomed these theories because he believed that intellectual ferment was required for progress. Buckle composed a thematically related adage: 2

For, the great enemy of knowledge is not error, but inertness. All that we want is discussion, and then we are sure to do well, no matter what our blunders may be. One error conflicts with another; each destroys its opponent, and truth is evolved.
In 1899 Buckle’s words were remembered, and the passage above was included in “Edge-Tools of Speech” compiled by Maturin M. Ballou. 3 Also, in 1915 the passage was placed in “Forty Thousand Sublime and Beautiful Thoughts” compiled by Charles Noel Douglas. 4

A different article on this website examined a quotation about illusion in the domain of communication. The journalist William H. Whyte wrote the following in “Fortune” magazine in 1950:

The great enemy of communication, we find, is the illusion of it.
In 1983 the popular book “The Discoverers” by Daniel J. Boorstin was published, and the author included an instance of the saying that was particularized to geographical knowledge: 5

The great obstacle to discovering the shape of the earth, the continents, and the ocean was not ignorance but the illusion of knowledge. Imagination drew in bold strokes, instantly serving hopes and fears, while knowledge advanced by slow increments and contradictory witnesses.
Boorstin also placed another version of the saying in “The Discoverers” within a section titled “A Personal Note to the Reader”: 6

The obstacles to discovery—the illusions of knowledge—are also part of our story. Only against the forgotten backdrop of the received common sense and myths of their time can we begin to sense the courage, the rashness, the heroic and imaginative thrusts of the great discoverers.
In January 1984 Boorstin spoke the adage while being interviewed in the pages of “The Washington Post” as noted previously in this article:

The fact is the savior, as long as you don’t jam it into some preconceived pattern. The greatest obstacle to discovery is not ignorance—it is the illusion of knowledge.



plz mark as brainliest dear sir

Answer 2

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It is a famous quote it means do read what ever you want and gain knowledge whatever you want but only gain the knowledge you know about it or you have knowledge about it  . Don't gain false knowledge or read anything wrong . Right ?. it is the illusion of knowledge who make anyone empty in itself . Don't ignore it actually you cant ignore it because it is the ultimate truth you can only mind what you have interest in . No one can force you or you cant remember about you haven't interest or something doesn't exist 
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