“Categories of understanding along with everything else alter as societies change.”
Discrepancies among the Social Sciences (1981)
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William H. McNeill 43
Canadian historian 1917–2016Related quotes
“Once your mindset changes, everything on the outside will change along with it.”
Source: Life, the Truth, and Being Free (2010), p. 16

Source: Sexual Personae: Art and Decadence from Nefertiti to Emily Dickinson (1990), p. 1
“Why is it that when we lose something big, we begin to lose everything else along with it?”
Source: The Survival Kit
Source: Everyone is African: How Science Explodes the Myth of Race (2015), p. 11.
Context: Classification is real, but it is based much more on a set of social definitions than on genetic distinctions. Legally defined categories for race differ from one country to another, and they change over time depending largely on the social and political realities of a particular society or nation. The notion of discrete racial categories arose mostly as an artifact of centuries-long immigration history coupled with overriding worldviews that white superiority was inherent, a purported genetic destiny that has no basis in modern science.

Leontief, quoted in: Carter, A.P. (1996), "Technology, Employment and the Distribution of Income: Leontief af 90," Economic Systems Research, Vol. 8, no. 4, pp. 315.