A nice letter

Dear Cesar:

Wow. What a first sentence. I’ll be your friend forever! Even longer!!!

I think there was an implicit contract between you and X that you embark him back on land, safely, if you are now annoyed with him. Of course, if he comes at you with a knife with murder in his eye, you can dump him to his death into the ocean; you would do so in self defense. But he only annoyed you. He is not a trespasser. He is a guest of yours. You are obliged not to keep him on your boat for nine months, but, at the very least, to see to it that he gets safely off your boat.

In sharp contrast, the pregnant mother did NOT invite her fetus “on board” when she have voluntary sexual intercourse. For there to be an invitiation, there has to be an invitor and and invitee, and, at the time sexual intercourse, there was not even a fertilized egg to “invite” since it takes time for the sperm to reach the egg, and there is no guest or trespasser in existence until then.

Best regards,


Dear Mr. Block,

I have a question that i would like to ask to you since you’re the wisest libertarian alive, as far as i’m concerned. The question is about when is it legally permissible to evict someone from one’s property, especially in the case of non-intruders (guests).

Imagine i informally invited someone (let’s call him X) to get on my boat with me. Then, i sail the boat and we reach the Pacific Ocean. X starts being annoying, so i tell him to leave the boat. He refuses, but i tell him that he is on my property, and that if he refuses to leave, he becomes a trespasser. He refuses again, so i forcibly evict the, from now on, trespasser (X) from my boat. He ends up in the middle of the pacific ocean. After a few minutes, he drowns and dies.

Should i be put in jail? He refused to leave MY property, doesn’t that make him a trespasser? Yes, it was rather likely that he would die if i evicted him from my boat, but does that risk override my property rights over my boat? If so, how we determine when and how? What amount of risk is permissible or not? Is it quantifiable?

Another easier example would be, i invite X to my house, i can evict him out of my house whenever i want. But what if there are violent wolves hanging around the front door? Can i still kick him out of my property?

Am i obliged to let X stay in my boat or in my house as long as there is risk of death if i were to evict him? Isn’t that a positive right and therefore against libertarianism?

I hope i didn’t waste your time with my stupid questions. I look forward to hearing from you.

Best regards, César

All: Akers, 2012A, 2012B; Block, 1977, 1978, 2001, 2004, 2010A, 2010B, 2011A, 2011B, 2011C, 2011, 2012, 2014A, 2014B, 2014, 2017, 2021; Block and Whitehead, 2005; Davies, 2012; Dyke and Block, 2011; McGee and Block, forthcoming; Parr, 2011, 2013; Rothbard, 1978; Rozeff, 2019; Sadowsky, 1978; Shaffer, 2012; Wisniewski, 2010A, 2010B, 2011, 2013.

I. Here are Walter E. Block’s publications and speeches on abortion, pro life, pro choice, evictionism, followed by critiques of his views, followed by his responses to these critiques:

Block, 1977, 1978, 2001, 2004, 2008, 2010A, 2011A, 2011B, 2012, 2014A, 2014B, 2014C, 2018, 2021; Block and Whitehead, 2005; Dyke and Block, 2011

Block, Walter E. 1977. “Toward a Libertarian Theory of Abortion.” The Libertarian Forum. Vol. 10, No. 9, September, pp. 6-8;

Block, Walter E. Undated (1997?).  “L’Aborto:  Una Legittima Difesa,” Claustrofobia, anno 1, n. 3, pp. 16-22.

Block, Walter E. 1978. “Abortion, Woman and Fetus: Rights in Conflict?” Reason, Vol. 9, No. 12, April, pp. 18-25.

Block, Walter E. 2001. “Stem Cell Research: The Libertarian Compromise.” September 3;

Block, Walter E. 2004. “Libertarianism, Positive Obligations and Property Abandonment: Children’s Rights,” International Journal of Social Economics; Vol. 31, No. 3, pp. 275-286;

Block, Walter E. 2010. “A libertarian perspective on the stem cell debate: compromising the uncompromisible,” Journal of Medicine and Philosophy. Vol. 35, No. 4, pp. 429-448;; ijkey=oczT7ytzmoAD1cz&keytype=ref;

Block, Walter E. 2011A. “Response to Wisniewski on Abortion, Round Three.” Libertarian Papers, Vol. 3, Art. 37, pp. 1-21;;;

Block, Walter E. 2011B. “Terri Schiavo: A Libertarian Analysis” Journal of Libertarian Studies; Vol. 22, pp. 527–536; block-terri-schiavo/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+LibertyCrier+%28Liberty+Crier%29

Block, Walter E. 2012. “A Not So Funny Thing Happened to Me in Tampa.” August 30;

Block, Walter E.  2014A. “Should abortion be criminalized? Rejoinder to Akers, Davies and Shaffer on Abortion” Management Education Science Technology (MEST) Journal. Vol. 2, No. 1, January, pp. 33-44;

Block, Walter E. 2014B. “Evictionism and Libertarianism.” Journal of Medicine and Philosophy. Volume 35, Issue 2, pp 290-294;;

Block, Walter E. 2014C. “Toward a libertarian theory of evictionism,” Journal of Family and Economic Issues. June; Volume 35, Issue 2, pp. 290-294;;

Block, Walter E. 2018. “Judith Jarvis Thomson on abortion; a libertarian critique.” DePaul Journal of Health Care Law. Vol. 19; Issue 1; Article 3, pp. 1-17;

Block, Walter E. and Roy Whitehead. 2005. “Compromising the Uncompromisable: A Private Property Rights Approach to Resolving the Abortion Controversy,” Appalachian Law Review, 4 (2) 1-45;

Block, Walter E. 2021. Evictionism: The compromise solution to the pro-life pro-choice debate controversy. Springer Publishing Company.

Dyke, Jeremiah and Walter E. Block. 2011. “Explorations in Property Rights: Conjoined Twins.” Libertarian Papers, Vol. 3, Art. 38;

McGee, Robert W. and Walter E. Block. Forthcoming. “On Abortion: Utilitarianism and Deontology,” Southern University Law Review

II. Critics of evictionism::

Akers, 2012A, 2012B; Davies, 2012; Feser, 2004; Goodwin, 2014; Parr, 2011, 2013; Mosquito, 2014, 2015; Rothbard, ; Sadowsky, 1978; Shaffer, 2012;  Rothbard, 1978; Vance, 2008, 2012; Wisniewski, 2010A, 2010B, 2011, 2013.

Akers, Becky. 2012A. “Not My Definition — or Webster’s Either — of ‘Trespassing’” September 6;

Akers, Becky. 2012B. “What if the ‘Fetus’ Could Shoot Back?” September 12;

Davies, Jim. 2012. “Abortion.” September 24;

Feser, Edward. 2004. “Self-ownership, abortion, and the rights of children: toward a more conservative libertarianism.” Journal of Libertarian Studies. Volume 18, no. 3 (Summer), pp. 91-114;

Goodwin, Jonathan. 2014. Libertarians and Abortion.” December 23;

Mosquito, Bionic. 2014. “Libertarians and Abortion.” December 23;

Mosquito, Bionic. 2015. “Walter Block, Specific Performance Contracts, and Abortion.” July 12;

Parr, Sean. 2011. “Departurism and the Libertarian Axiom of Gentleness.” Libertarian Papers, Vol. 3, No. 34,

Parr, Sean. 2013. “Departurism Redeemed – A Response to Walter Block’s ‘Evictionism is Libertarian; Departurism is Not: Critical Comment on Parr.’” Journal of Peace, Prosperity, and Freedom, Vol. 2, pp. 109-123;

Presley, Sharon and Robert Cooke (aka Morgan Edwards). 1979. “The right to abortion: a libertarian defense.” Association of libertarian feminists discussion paper

Rothbard, Murray N. 1978.  “The editor replies.” Libertarian Forum. July-August, p. 3;

Sadowsky, S.J., James. 1978. “Abortion and Rights of the Child.” Libertarian Forum. July-August, pp. 2-3;

Shaffer, Butler. 2012. “Of Children and Fetuses.” September 17;

Vance, Laurence. 2008. “Is Ron Paul Wrong on Abortion?” January 29;

Vance, Laurence. 2012. “Libertarianism and Abortion.” July 17;

Wisniewski, Jakub Bozydar. 2010A. “A Critique of Block on Abortion and Child Abandonment.” Libertarian Papers Vol. 2, No. 16;

Wisniewski, Jakub Bozydar. 2010B. “Rejoinder to Block’s Defense of Evictionism.” Libertarian Papers. Vol. 2, Art No. 27;

Wisniewski, Jakub Bozydar. 2011. “Response to Block on Abortion, Round Three.” Libertarian Papers. Vol. 3, No. 6, pp. 1-6;

Wisniewski, Jakub Bozydar. 2013. “Abortion, Libertarianism and Evictionism: A Last Word.” Libertarian Papers, Vol. 5, No. 1, pp. 153-162;

Also see this, to which I have not yet replied:

Rozeff Michael S. 2019. “Rothbard’s and Block’s Abortion Theories.” June 13;

III. Block responds to critics:

Block, 2010A, 2010B, 2011A, 2011B, 2011C, 2014; 2017

Block, Walter E. 2010A. “Objections to the Libertarian Stem Cell Compromise,” Libertarian Papers 2, 34;

Block, Walter E. 2010B. “Rejoinder to Wisniewski on Abortion.” Libertarian Papers; Vol. 32, No. 2;

Block, Walter E. 2011A. “Response to Wisniewski on Abortion, Round Two.” Libertarian Papers; Vol. 3, Article No. 4;

Block, Walter E. 2011B. “Response to Wisniewski on Abortion, Round Three.” Libertarian Papers, Vol. 3, No. 6;

Block, Walter E. 2011C. “Evictionism is libertarian; departurism is not: critical comment on Parr.” Vol. 3, Article 36, Libertarian Papers;

Block, Walter E. 2014D. “Response to Wisniewski on Abortion, Round Four.” Management Education Science Technology Journal (MEST); Vol. 2, No. 2, pp. 1-14;;

Block, Walter E. 2013. “Rejoinder to Parr on Evictionism and Departurism” Journal of Peace, Prosperity & Freedom, Vol. 2, pp. 125-138;

Block, Walter E.  2014. “Should abortion be criminalized? Rejoinder to Akers, Davies and Shaffer on Abortion” Management Education Science Technology (MEST) Journal. Vol. 2, No. 1, January, pp. 33-44;

Block, Walter E. 2017. “Abortion Once Again; a response to Feser, Goodwin, Mosquito, Sadowsky, Vance and Watkins.” Journal of Constitutional Research (Brazil); Vol 4, No. 1, pp. 11-41;


2:15 am on July 11, 2022

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