“The greatest enemy of knowledge is not ignorance, but the illusion of knowledge”
Daniel Boorstin
Daniel Joseph Boorstin (October 1, 1914 – February 28, 2004) was an American historian at the University of Chicago who wrote on many topics in American and world history. He was appointed the twelfth Librarian of the United States Congress in 1975 and served until 1987. He was instrumental in the creation of the Center for the Book at the Library of Congress. Source
There are also some other sources that say that this quote is by Stephen Hawking.
