“After all there is throughout this world so far as man is concerned but a single race - the human race, kept alive by one common blood, the human blood. All other talk is at best provisional, a makeshift and only relatively true. (…) Even as it is, not even the aborigines of the Andamans are without some sprinkling of the so-called Aryan blood in their veins and vice-versa. Truly speaking all that one can claim is that one has the blood of all mankind in one’s veins. The fundamental unity of man from pole to pole is true, all else only relatively so.”

As quoted in [Paul Lafargue and the Founding of French Marxism, 1842-1882, Derfler, Leslie, Harvard University Press, 1991, 11, https://books.google.com/books?id=L_E_OR6owEEC&pg=PA11]

Source: The Merchant of Venice

To an ambassador (1785), as quoted in The Works of John Adams, Second President of the United States: Autobiography http://books.google.com/books?id=lWcsAAAAIAAJ&pg=PA392 (1851), by Charles F. Adams, p. 392.
1780s
Context: Neither my father or mother, grandfather or grandmother, great grandfather or great grandmother, nor any other relation that I know of, or care a farthing for, has been in England these one hundred and fifty years; so that you see I have not one drop of blood in my veins but what is American.

"Royalty" (1964)
E. L. Wisty
Context: We've all got royal blood in our veins, you know. It's the best place for it in my view. We've all got a little bit of royal blood in our veins, we're all in line for the succession, and if nineteen million, four hundred thousand, two hundred and eight people die, I'll be king tomorrow. It's not very likely but its a nice thought and helps keep you going.

Munich - Speech of April 12, 1922 https://archive.org/stream/TheSpeechesOfAdolfHitler19211941/hitler-speeches-collection_djvu.txt
1920s

Presidency (1977–1981), Farewell Address (1981)
Context: I have just been talking about forces of potential destruction that mankind has developed, and how we might control them. It is equally important that we remember the beneficial forces that we have evolved over the ages, and how to hold fast to them.
One of those constructive forces is enhancement of individual human freedoms through the strengthening of democracy, and the fight against deprivation, torture, terrorism and the persecution of people throughout the world. The struggle for human rights overrides all differences of color, nation or language.
Those who hunger for freedom, who thirst for human dignity, and who suffer for the sake of justice — they are the patriots of this cause.
I believe with all my heart that America must always stand for these basic human rights — at home and abroad. That is both our history and our destiny.
America did not invent human rights. In a very real sense, it is the other way round. Human rights invented America.
Ours was the first nation in the history of the world to be founded explicitly on such an idea. Our social and political progress has been based on one fundamental principle — the value and importance of the individual. The fundamental force that unites us is not kinship or place of origin or religious preference. The love of liberty is a common blood that flows in our American veins.

"Here"
Tares (1961)

Speech in Westminster Palace Hotel (23 May 1878), quoted in The Times (24 May 1878), p. 12
1870s

A former chief of Abombi to Conan
"The Scarlet Citadel" (1933)