
"The Origins and Effects of Our Morals: A Problem for Science", in The Essence of Hayek (1984)
1980s and later
p. 485 http://books.google.com/books?id=ePNi4ZqYdVQC&q=%22humans+are+interchangeable%22
The Blank Slate (2002)
Source: The Blank Slate: The Modern Denial of Human Nature
Context: [E]quality is not the empirical claim that all groups of humans are interchangeable; it is the moral principle that individuals should not be judged or constrained by the average properties of their group. … If we recognize this principle, no one has to spin myths about the indistinguishability of the sexes to justify equality.
"The Origins and Effects of Our Morals: A Problem for Science", in The Essence of Hayek (1984)
1980s and later
Report of the Independent Expert on the promotion of a democratic and equitable international order on the right of self determination http://www.ohchr.org/EN/Issues/IntOrder/Pages/Reports.aspx.
2015, Report submitted to the UN General Assembly
"To Reduce Them Under Absolute Despotism" http://www.ncc-1776.org/tle2010/tle568-20100502-02.html 2 May 2010.
Source: The Number-System of Algebra, (1890), p. 3; Reported in Robert Edouard Moritz. Memorabilia mathematica; or, The philomath's quotation-book https://archive.org/stream/memorabiliamathe00moriiala#page/81/mode/2up, (1914), p. 263
Source: Here Comes Everybody: The Power of Organizing Without Organizations (2008), p. 14
The historical extempore speech at the Reserve Officers' College (1959)
"Kinds of Killing" https://web.archive.org/web/20121111032625/http://www.thatsmags.com/shanghai/article/1008/kinds-of-killing (2011) (original emphasis)