Smith began teaching in the 1970s, first under the auspices of his own Forum for Philosophical Studies (with offices on
Sunset Boulevard in Los Angeles), later under the auspices of American libertartian
think tanks like the
Cato Institute and the
Institute for Humane Studies (IHS). In an
op-ed for
The New York Times in 1992, he defended the right of the
Boy Scouts of America to refuse membership to atheists. In November 1999, Smith wrote "In Defense of Rational Anarchism", He wrote: "Those familiar with its [i.e., 'consent' theory's] long history will understand that it has everywhere and always been used to defend and expand the absolute power of govern-ment." His published works often dealt with such issues as
capital punishment (which he opposed),
anarcho-capitalism and
philosophical anarchism,
religious toleration, and atheism. Among many figures, he wrote about
Thomas Hobbes,
John Locke,
Ayn Rand, to a collection of work by
Lysander Spooner. In 2013,
Cambridge University Press published his book
The System of Liberty: Themes in the History of Classical Liberalism,'' == Philosophy ==