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88 Precepts
“There can be no racial animosity, because there are no races.”
Our America (1881)
Context: There can be no racial animosity, because there are no races. The theorist and feeble thinkers string together and warm over the bookshelf races which the well-disposed observer and the fair-minded traveller vainly seek in the justice of Nature where man's universal identity springs forth from triumphant love and the turbulent hunger for life. The soul, equal and eternal, emanates from bodies of different shapes and colors. Whoever foments and spreads antagonism and hate between the races, sins against humanity.
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José Martí 103
Poet, writer, Cuban nationalist leader 1853–1895Related quotes

“I found a solace in nursing a pervasive sense of grievance and animosity against my mother's race.”
Circulated in "A Coil of Rage" http://www.snopes.com/politics/obama/coilofrage.asp, a 2011 mass e-mail attributing several fabricated quotations to Obama.
Originally a statement about Obama by Steve Sailer from "Obama's Identity Crisis", The American Conservative (), recast into first-person as if said by Obama:
And yet, at least through age 33 when he wrote Dreams from My Father, he found solace in nursing a pervasive sense of grievance and animosity against his mother's race.
Misattributed

Adarand Constructors, Inc. v. Peña, 515 U.S. 200, 239 (1995) (Scalia, J., concurring).
1990s

Loving v. Virginia http://www.amazon.com/Everyone-African-Science-Explodes-Myth/dp/1633880184/ref=asap_bc?ie=UTF8 (1967).
1960s

The Essence of a Creator, essence 18
The Little White Book (1991)

As quoted in "The World's Work: A History of Our Time" (1924) by Walter Hines Page and Arthur Wilson Page, p. 253; also in "Man Rises to Parnassus" (1928), p. 220

On affirmative action: Richmond v. Croson Co. (1989) (concurring).
1980s
Daniel Katz and K.W. Braly (1935) "Racial prejudice and racial stereotypes". Journal of Abnormal and Social Psychology. p. 191-2 Cited in: Mark P. Zanna, James M. Olson (1994) The Psychology of Prejudice. p. 16