We need to remember the leg of wisdom of president Mr John Kennedy, I learn a lot a lot from him  .

There are risks and costs to action. But they are far less than the long range risks of comfortable inaction. John F. Kennedy

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There are many people in the world who really don't understand-or say they don't-what is the great issue between the free world and the Communist world. Let them come to Berlin! John F. Kennedy
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I am not the Catholic candidate for President. I am the Democratic Party's candidate for President, who happens also to be a Catholic. John F. Kennedy
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War will exist until that distant day when the conscientious objector enjoys the same reputation and prestige that the warrior does today. John F. Kennedy
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A child miseducated is a child lost. John F. Kennedy
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Too often we... enjoy the comfort of opinion without the discomfort of thought. John F. Kennedy
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Those who make peaceful revolution impossible will make violent revolution inevitable. John F. Kennedy
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The ignorance of one voter in a democracy impairs the security of all. John F. Kennedy
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Victory has a thousand fathers, but defeat is an orphan. John F. Kennedy
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History is a relentless master. It has no present, only the past rushing into the future. To try to hold fast is to be swept aside. John F. Kennedy
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If we cannot now end our differences, at least we can help make the world safe for diversity. John F. Kennedy
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When power leads man toward arrogance, poetry reminds him of his limitations. When power narrows the area of man's concern, poetry reminds him of the richness and diversity of existence. When power corrupts, poetry cleanses. John F. Kennedy
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