President Roosevelt and President Truman and President Eisenhower had the same experience, they all made the effort to get along with the Russians. But every time, finally it failed. And the reason it failed was because the Communists are determined to destroy us, and regardless of what hand of friendship we may hold out or what arguments we may put up, the only thing that will make that decisive difference is the strength of the United States.

Speech by Senator John F. Kennedy, Democratic Rally, George Washington High School Stadium, Alexandria, VA, August 24, 1960. - The American Presidency Project.