This quote is written / told by Paulo Freire between September 19, 1921 and May 2, 1997. He/she was a famous Educator from Brazil.
The author also have 2 other quotes.
"Developments in information technology and globalised media mean that the most powerful military in the history of the world can lose a war, not on the battlefield of dust and blood, but on the battlefield of world opinion"
"We cannot continue to rely only on our military in order to achieve the national security objectives that we've set. We've got to have a civilian national security force that's just as powerful, just as strong, just as well-funded"