John Fitzgerald Kennedy: Frases en inglés

1964 Memorial Edition, p. 265 http://www.jfklibrary.org/Research/Research-Aids/Ready-Reference/JFK-Quotations/Profiles-in-Courage-quotations.aspx
Pre-1960, Profiles in Courage (1956)

"In the long history of the world, only a few generations have been granted the role of defending freedom in its hour of maximum danger. I do not shrink from this responsibility — I welcome it." is one of seven quotes inscribed on the walls at the gravesite of John F. Kennedy at Arlington National Cemetery.
"The energy, the faith, the devotion which we bring to this endeavor will light our country and all who serve it — and the glow from that fire can truly light the world." is one of seven quotes inscribed on the walls at the gravesite of John F. Kennedy at Arlington National Cemetery.
"And so, my fellow Americans: ask not what your country can do for you — ask what you can do for your country. My fellow citizens of the world: ask not what America will do for you, but what together we can do for the freedom of man." is one of seven quotes inscribed on the walls at the gravesite of John F. Kennedy at Arlington National Cemetery.
It has been reported at various places on the internet that in JFK's Inaugural address, the famous line "Ask not what your country can do for you, ask what you can do for your country", was inspired by, or even a direct quotation of the famous and much esteemed writer and poet Khalil Gibran. Gibran in 1925 wrote in Arabic a line that has been translated as:
::Are you a politician asking what your country can do for you or a zealous one asking what you can do for your country?
::If you are the first, then you are a parasite; if the second, then you are an oasis in a desert.
However, this translation of Gibran is one that occurred over a decade after Kennedy's 1961 speech, appearing in A Third Treasury of Kahlil Gibran (1975) edited by Andrew Dib Sherfan, and the translator most likely drew upon Kennedy's famous words in expressing Gibran's prior ideas. For a further discussion regarding the quote see here.
1961, Inaugural Address
Contexto: In the long history of the world, only a few generations have been granted the role of defending freedom in its hour of maximum danger. I do not shrink from this responsibility — I welcome it. I do not believe that any of us would exchange places with any other people or any other generation. The energy, the faith, the devotion which we bring to this endeavor will light our country and all who serve it — and the glow from that fire can truly light the world.
And so, my fellow Americans: ask not what your country can do for you — ask what you can do for your country.
My fellow citizens of the world: ask not what America will do for you, but what together we can do for the freedom of man.

1960, The New Frontier
Contexto: But I think the American people expect more from us than cries of indignation and attack. The times are too grave, the challenge too urgent, and the stakes too high — to permit the customary passions of political debate. We are not here to curse the darkness, but to light the candle that can guide us through that darkness to a safe and sane future. As Winston Churchill said on taking office some twenty years ago: if we open a quarrel between the present and the past, we shall be in danger of losing the future. Today our concern must be with that future. For the world is changing. The old era is ending. The old ways will not do. [... ] It is a time, in short, for a new generation of leadership — new men to cope with new problems and new opportunities.

1961, UN speech
Contexto: Men no longer debate whether armaments are a symptom or a cause of tension. The mere existence of modern weapons — ten million times more powerful than any that the world has ever seen, and only minutes away from any target on earth — is a source of horror, and discord and distrust. Men no longer maintain that disarmament must await the settlement of all disputes — for disarmament must be a part of any permanent settlement. And men may no longer pretend that the quest for disarmament is a sign of weakness — for in a spiraling arms race, a nation's security may well be shrinking even as its arms increase.

1961, UN speech
Contexto: Ladies and gentlemen of this Assembly, the decision is ours. Never have the nations of the world had so much to lose, or so much to gain. Together we shall save our planet, or together we shall perish in its flames. Save it we can — and save it we must — and then shall we earn the eternal thanks of mankind and, as peacemakers, the eternal blessing of God.

1961, Address to ANPA
Contexto: Today no war has been declared — and however fierce the struggle may be, it may never be declared in the traditional fashion. Our way of life is under attack. Those who make themselves our enemy are advancing around the globe. The survival of our friends is in danger. And yet no war has been declared, no borders have been crossed by marching troops, no missiles have been fired.
If the press is awaiting a declaration of war before it imposes the self-discipline of combat conditions, then I can only say that no war ever posed a greater threat to our security. If you are awaiting a finding of "clear and present danger," then I can only say that the danger has never been more clear and its presence has never been more imminent.
It requires a change in outlook, a change in tactics, a change in missions — by the government, by the people, by every businessman or labor leader, and by every newspaper. For we are opposed around the world by a monolithic and ruthless conspiracy that relies primarily on covert means for expanding its sphere of influence — on infiltration instead of invasion, on subversion instead of elections, on intimidation instead of free choice, on guerrillas by night instead of armies by day. It is a system which has conscripted vast human and material resources into the building of a tightly knit, highly efficient machine that combines military, diplomatic, intelligence, economic, scientific and political operations. Its preparations are concealed, not published. Its mistakes are buried, not headlined. Its dissenters are silenced not praised. No expenditure is questioned, no rumor is printed, no secret is revealed. It conducts the Cold War, in short, with a war-time discipline no democracy would ever hope or wish to match.
Nevertheless, every democracy recognizes the necessary restraints of national security — and the question remains whether those restraints need to be more strictly observed if we are to oppose this kind of attack as well as outright invasion.

Commencement address, Yale University, New Haven, Connecticut (11 June 1962) http://millercenter.org/scripps/archive/speeches/detail/3370
1962
Contexto: The great enemy of the truth is very often not the lie — deliberate, contrived and dishonest — but the myth — persistent, persuasive, and unrealistic. Too often we hold fast to the cliches of our forebears. We subject all facts to a prefabricated set of interpretations. We enjoy the comfort of opinion without the discomfort of thought.

1961, UN speech
Contexto: Today, every inhabitant of this planet must contemplate the day when this planet may no longer be habitable. Every man, woman and child lives under a nuclear sword of Damocles, hanging by the slenderest of threads, capable of being cut at any moment by accident, or miscalculation, or by madness. The weapons of war must be abolished before they abolish us.

1962, Rice University speech

Acceptance of the New York Liberal Party nomination (14 September 1960) · Address of John F. Kennedy upon Accepting the Liberal Party Nomination for President https://www.jfklibrary.org/Research/Research-Aids/JFK-Speeches/Liberal-Party-Nomination-NYC_19600914.aspx
1960

1963, Remarks Prepared for Delivery at the Trade Mart in Dallas
Contexto: Our security and strength, in the last analysis, directly depend on the security and strength of others, and that is why our military and economic assistance plays such a key role in enabling those who live on the periphery of the Communist world to maintain their independence of choice. Our assistance to these nations can be painful, risky and costly, as is true in Southeast Asia today. But we dare not weary of the task. For our assistance makes possible the stationing of 3-5 million allied troops along the Communist frontier at one-tenth the cost of maintaining a comparable number of American soldiers.

1962, Rice University speech

Address to Latin American diplomats at the White House (13 March 1962) http://www.presidency.ucsb.edu/ws/index.php?pid=9100&st=&st1=
1962

1963, Address at Vanderbilt University
Contexto: You have responsibilities, in short, to use your talents for the benefit of the society which helped develop those talents. You must decide, as Goethe put it, whether you will be an anvil or a hammer, whether you will give to the world in which you were reared and educated the broadest possible benefits of that education. Of the many special obligations incumbent upon an educated citizen, I would cite three as outstanding: your obligation to the pursuit of learning, your obligation to serve the public, your obligation to uphold the law.