"It might also naturally be enquired whether man, like so many other animals, has given rise to varieties and sub-races, differing but slightly from each other, or to races differing so much as they must be classed as doubtful species?"
- Charles Darwin, "THE DESCENT of MAN, and Selection in Relation to Sex." Princeton University Press, 1981, Chapter 1, Page 9
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1 List the 7 general classifications which Darwin is specifying in this question.
2 List the 5 general 'a priori' pre-suppositions which Darwin is predicating his question on.
3 Do you think it is 'natural' to classify human beings according to racial and sub-racial divisions?
4 Do you think it is 'natural' to classify human beings into 'species' whether they are doubtful ones or not?
5 Do you think Darwin was a naturalist, a historian, a scientist or a racial philosopher?