“Victory is for them, not for us. We have not made profit out of our country's misfortune. Victory does not bring us luck.”

Tears and Saints (1937)

Order of the Day (2 June 1944), a message to troops before the Normandy landings http://www.3ad.com/history/wwll/feature.pages/d.day.letters.htm, reported in Franklin Watts, Voices of History (1945), p. 260
1940s
Context: Soldiers, Sailors and Airmen of the Allied Expeditionary Force!
You are about to embark upon the Great Crusade, toward which we have striven these many months. The eyes of the world are upon you. The hopes and prayers of liberty-loving people everywhere march with you. In company with our brave Allies and brothers-in-arms on other Fronts, you will bring about the destruction of the German war machine, the elimination of Nazi tyranny over the oppressed peoples of Europe, and security for ourselves in a free world.
Your task will not be an easy one. Your enemy is well trained, well equipped and battle hardened. He will fight savagely.
But this is the year 1944! Much has happened since the Nazi triumphs of 1940-41. The United Nations have inflicted upon the Germans great defeats, in open battle, man-to-man. Our air offensive has seriously reduced their strength in the air and their capacity to wage war on the ground. Our Home Fronts have given us an overwhelming superiority in weapons and munitions of war, and placed at our disposal great reserves of trained fighting men. The tide has turned! The free men of the world are marching together to Victory!
I have full confidence in your courage and devotion to duty and skill in battle.
We will accept nothing less than full Victory! Good luck! And let us beseech the blessing of Almighty God upon this great and noble undertaking.

Source: The Lady of the Rivers

Attributed in 1861, as quoted in The Life of Abraham Lincoln: Drawn from Original Sources https://books.google.com/books?id=3WMDAAAAYAAJ&pg=PA124&dq=%22What+must+he+think+of+us%22 (1900), Volume 3, New York: Lincoln History Society, p. 124
Posthumous attributions

[...] They offered them as much of the Evil Forest as they cared to take. And to their great amazement the missionaries thanked them and burst into song.
Source: Things Fall Apart (1958), Chapter 17 (p. 139)

1910s, Speech in the Reichstag, 18 March 1918

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.

"The Origins of the Military Dictatorship of Hindenburg and Ludendorff" by Jon Bridgman - 1960

2010s, 2015, Presidential Bid Announcement (June 16, 2015)