Words to live by: In commemoration of the 50th anniversary of President Kennedy's assassination, take a look back at some of his most poignant quotes
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Updated: Wednesday Nov 20, 2013 | 04:00 PM EST
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"Change is the law of life. And those who look only to the past or present are certain to miss the future."– JFK's address at St. Paul's Church in Frankfurt, Germany, June 25, 1963
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