Kennedy here references Francis Bacon’s Aphorism 129 of Novum Organum: Again, we should notice the force, effect, and consequences of inventions, which are nowhere more conspicuous than in those three which were unknown to the ancients; namely, printing, gunpowder, and the compass. For these three have changed the appearance and state of the whole world; first in literature, then in warfare, and lastly in navigation: and innumerable changes have been thence derived, so that no empire, sect, or star, appears to have exercised a greater power and influence on human affairs than these mechanical discoveries.
1961, Address to ANPA
John F. Kennedy: Use (page 4)
John F. Kennedy was 35th president of the United States of America. Explore interesting quotes on use.1963, Address at the Free University of Berlin
1961, Address at the University of Washington
1962, Address at Independence Hall
1963, President John F. Kennedy's last formal speech and public words
Speech at the Coliseum, Raleigh, North Carolina" (17 September 1960) http://www.presidency.ucsb.edu/ws/?pid=74076
1960
Address to the Canadian Parliament (17 May 1961)
1961
1963, President John F. Kennedy's last formal speech and public words
Speech to a joint session of the Dail and the Seanad, Dublin, Ireland (28 June 1963)
1963
Source: 1962, Rice University speech
1963, Remarks Prepared for Delivery at the Trade Mart in Dallas
1962, Rice University speech
This is one of seven quotes inscribed on the walls at the gravesite of John F. Kennedy at Arlington National Cemetery.
1961, Inaugural Address
1962, Second Letter to Nikita Khrushchev
1961, UN speech
1963, UN speech
1963, Civil Rights Address
"Address at a Luncheon Meeting of the National Industrial Conference Board (33)", (13 February 1961) http://www.jfklibrary.org/Research/Research-Aids/Ready-Reference/JFK-Quotations.aspx
1961
"Message from the President on the Occasion of Field Mass at Gettysburg, delivered by John S. Gleason, Jr." (29 June 1963) http://www.jfklibrary.org/Research/Research-Aids/Ready-Reference/JFK-Quotations.aspx; Box 10, President's Outgoing Executive Correspondence, White House Central Chronological Files, Papers of John F. Kennedy, John F. Kennedy Presidential Library
1963