Libertarians are concerned, first and foremost, with that most valuable of properties, the life of each individual. … Property rights pertaining to material objects are seen by libertarians as stemming from and…secondary to the right to own, direct, and enjoy one's own life and those appurtenances thereto which may be acquired without coercion.

"Letter From Washington," The Libertarian Forum 1, no. 6 (15 June 1969), p. 2