Saved as reference for LambdaConf 2016 Controversy. I don't endorse, agree with, condone, etc.
Once we get this far, we are almost all the way to Carlyle on slavery. We have not agreed that a man can be born a slave, but we agree that he can sell himself into slavery. That is: he can sign a contract with a master in which the slave agrees unconditionally to obey and work for the master, and the master agrees unconditionally to protect and support the slave.
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It is only a short step from seeing the State as an enforcer of voluntary and binding obligations, to an enforcer of involuntary and arbitrary obligations. No society can possibly exist without uncontracted obligations.
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We see these same relationship parameters emerging whether the relationship of domination originates as a hereditary obligation, or as a voluntary obligation, or in a state outside law such as the state of the newly captured prisoner (the traditional origin of slave status in most eras). This is a pretty good clue that this structure is one to which humans are biologically adapted.
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Not all humans are born the same, of course, and the innate character and intelligence of some is more suited to mastery than slavery.