“[The] property right in one's own body must be said to be justified a priori, for anyone who would try to justify any norm whatsoever would already have to presuppose the exclusive right to control over his body as a valid norm simply in order to say "I propose such in such."”
The Economics and Ethics of Private Property (2nd edition, Ludwig von Mises Institute: 2006): 335.
The Economics and Ethics of Private Property (1993)
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Hans-Hermann Hoppe 21
Austrian school economist and libertarian anarcho-capitalis… 1949Related quotes

As quoted in His Brother's Blood: Speeches and Writings, 1838–64 https://web.archive.org/web/20160319081405/https://books.google.com/books?id=qMEv8DNXVbIC&pg=PA238#v=onepage&q&f=false (2004), edited by William Frederick Moore and Jane Ann Moore, p. 238
1860s, Speech (October 1860)

19 September 2013 during his speech at the Valdai forum
2013

1860s, First Inaugural Address (1861)
Context: If by the mere force of numbers a majority should deprive a minority of any clearly written constitutional right, it might, in a moral point of view, justify revolution — certainly would if such a right were a vital one. But such is not our case. All the vital rights of minorities and of individuals are so plainly assured to them by affirmations and negations, guarantees and prohibitions, in the Constitution, that controversies never arise concerning them. But no organic law can ever be framed with a provision specifically applicable to every question which may occur in practical administration. No foresight can anticipate, nor any document of reasonable length contain, express provisions for all possible questions.

Address to the Society for Psychical Research (1897)
Context: I will point out a curious, inveterate, and widespread illusion — the illusion that our earthly bodies are a kind of norm of humanity, so that ethereal bodies, if such there be, must correspond to them in shape and size.
When we take a physical view of a human being in his highest form of development, he is seen to consist essentially of a thinking brain, the brain itself, among its manifold functions, being a transformer whereby intelligent will power is enabled to react on matter. To communicate with the external world, the brain requires organs by which it can be transported from place to place, and other organs by means of which energy is supplied to replace that expended in the exercise of its own special functions.

‘To the Freemen of Coventry’, Political Register (4 April 1818), p. 404
1810s