John F. Kennedy, (1917-1963) 35th US President Share on Facebook Share on Twitter Comment on this quote Share via Email Print this Page John F. Kennedy Quote “Mankind must put an end to war or war will put an end to mankind.”John F. Kennedy ~ John F. Kennedy (1917-1963) 35th US PresidentSpeech to UN General Assembly, Sept. 25, 1961 Humanist , War Ratings and Comments SaveOk2 SaveOk2 View CommentsClick to view or comment. Share on Facebook Tweet Email Print This John F. Kennedy quote is found in these categories: Humanist quotes War quotes About John F. Kennedy Bio of John F. Kennedy Quotations by John F. Kennedy Books by/about John F. Kennedy John F. Kennedy videos John F. Kennedy on Wikipedia Astrological chart for John F. Kennedy