„You ask, what is our aim? I can answer in one word. It is victory, victory at all costs, victory in spite of all terror, victory, however long and hard the road may be; for without victory, there is no survival.“
Speech in the House of Commons, after taking office as Prime Minister (13 May 1940) This has often been misquoted in the form: "I have nothing to offer but blood, sweat and tears ..."
The Official Report, House of Commons (5th Series), 13 May 1940, vol. 360, c. 1502. Audio records of the speech do spare out the "It is" before the in the beginning of the "Victory"-Part.
The Second World War (1939–1945)
Context: You ask, what is our policy? I will say: It is to wage war, by sea, land and air, with all our might and with all the strength that God can give us: to wage war against a monstrous tyranny, never surpassed in the dark, lamentable catalogue of human crime. That is our policy. You ask, what is our aim? I can answer in one word: It is victory, victory at all costs, victory in spite of all terror, victory, however long and hard the road may be; for without victory, there is no survival.
Context: I would say to the House, as I said to those who have joined this Government: 'I have nothing to offer but blood, toil, tears, and sweat.' We have before us an ordeal of the most grievous kind. We have before us many, many long months of struggle and of suffering. You ask, what is our policy? I will say: It is to wage war, by sea, land and air, with all our might and with all the strength that God can give us: to wage war against a monstrous tyranny, never surpassed in the dark, lamentable catalogue of human crime. That is our policy. You ask, what is our aim? I can answer in one word: It is victory, victory at all costs, victory in spite of all terror, victory, however long and hard the road may be; for without victory, there is no survival.
Related quotes

„I believe, in spite of all, in truth's victory.“
— Henri Barbusse French novelist 1873 - 1935
Light (1919), Ch. XXII - Light
Context: I believe, in spite of all, in truth's victory. I believe in the momentous value, hereafter inviolable, of those few truly fraternal men in all the countries of the world, who, in the oscillation of national egoisms let loose, stand up and stand out, steadfast as the glorious statues of Right and Duty.

— Nile Kinnick College football player 1918 - 1943
Letter to friend Loren Hickerson (December 13, 1941)

— Richard Nixon 37th President of the United States of America 1913 - 1994
1970s, Remarks on Being Reelected (1972)

„In Iraq, there is no peace without victory. We will keep our nerve and we will win that victory.“
— George W. Bush 43rd President of the United States 1946
2000s, 2005, Address to the National Endowment for Democracy (October 2005)

— Buenaventura Durruti Spanish anarchist 1896 - 1936
Van Paassen interview (1936)
Context: There are only two roads, victory for the working class, freedom, or victory for the fascists which means tyranny. Both combatants know what's in store for the loser. We are ready to end fascism once and for all, even in spite of the Republican government.

„If you believe in victory, then victory will believe in you.“
— Paulo Coelho, book The Winner Stands Alone
Source: The Winner Stands Alone

— Ferdinand Foch French soldier and military theorist 1851 - 1929
Source: Precepts and Judgments (1919), p. 209

— Harry Truman American politician, 33rd president of the United States (in office from 1945 to 1953) 1884 - 1972
Source: Report on the Potsdam Conference (1945)
Context: Our victory in Europe was more than a victory of arms.
It was a victory of one way of life over another. It was a victory of an ideal founded on the rights of the common man, on the dignity of the human being, on the conception of the State as the servant — and not the master — of its people.
A free people showed that it was able to defeat professional soldiers whose only moral arms were obedience and the worship of force.
We tell ourselves that we have emerged from this war the most powerful nation in the world — the most powerful nation, perhaps, in all history. That is true, but not in the sense some of us believe it to be true.
The war has shown us that we have tremendous resources to make all the materials for war. It has shown us that we have skillful workers and managers and able generals, and a brave people capable of bearing arms.
All these things we knew before.
The new thing — the thing which we had not known — the thing we have learned now and should never forget, is this: that a society of self-governing men is more powerful, more enduring, more creative than any other kind of society, however disciplined, however centralized.

„To be defeated and not submit, is victory; to be victorious and rest on one's laurels, is defeat.“
— Józef Piłsudski Polish politician and Prime Minister 1867 - 1935
(Late 1920s or the 1930s) Zbigniew Brzezinski in his introduction to Wacław Jędrzejewicz’s Piłsudski: A Life For Poland. Quoted from this website http://members.lycos.co.uk/jozefpilsudski/index2.html
Attributed

— Ernesto Che Guevara Argentine Marxist revolutionary 1928 - 1967
Tactics and Strategy of the Latin American Revolution (1962)

„Victory is within our ready grasp…We are in reach of a famous victory“
— Tony Abbott Australian politician 1957
"Abbott's 'famous victory' remark … was it gospel or not?" http://www.theage.com.au/national/abbotts-famous-victory-remark--was-it-gospel-or-not-20100623-ywq0.html in The Age, June 23, 2010.
2010
— Pierre Stephen Robert Payne British lecturer, novelist, historian, poet and biographer 1911 - 1983
The Corruptions Of the Physical Body, p. 6
The Corrupt Society - From Ancient Greece To Present-Day America (1975)

— Francisco Franco Spanish general and dictator 1892 - 1975
Statement in El defensor de Córdoba (2 October 1936), as cited by Agustín Celis http://www.agustincelis.com/id64.htm

— Paul Keating Australian politician, 24th Prime Minister of Australia 1944
1993 election victory speech.

„The aim of an argument or discussion should not be victory, but progress.“
— Joseph Joubert French moralist and essayist 1754 - 1824

— Benjamin Franklin American author, printer, political theorist, politician, postmaster, scientist, inventor, civic activist, statesman, a… 1706 - 1790

— Nelson Mandela President of South Africa, anti-apartheid activist 1918 - 2013
1990s, Inaugural speech (1994)
Context: Today we are entering a new era for our country and its people. Today we celebrate not the victory of a party, but a victory for all the people of South Africa.
Our country has arrived at a decision. Among all the parties that contested the elections, the overwhelming majority of South Africans have mandated the African National Congress to lead our country into the future. The South Africa we have struggled for, in which all our people, be they African, Coloured, Indian or White, regard themselves as citizens of one nation is at hand.