# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/lon-l-fuller
# Generated: 2026-08-13T23:31:35.268Z

schema: https://schema.org/Person
url: "https://fame.am/person/lon-l-fuller"
name: "Lon L. Fuller"
slug: "lon-l-fuller"
description: "Lon Luvois Fuller was an American legal philosopher best known as a proponent of a secular and procedural form of natural law theory. Fuller was a professor of law at Harvard Law School for many years, and is noted in American law for his contributions to both jurisprudence and the law of contracts. His 1958 debate with the British legal philosopher H. L. A. Hart in the Harvard Law Review was important in framing the modern conflict between legal positivism and natural law theory. In his widely discussed 1964 book The Morality of Law, Fuller argues that all systems of law contain an \"internal morality\" that imposes on individuals a presumptive obligation of obedience. Robert S. Summers said in 1984: \"Fuller was one of the four most important American legal theorists of the last hundred years\"."
tagline: "American philosopher of law (1902-1978)"
gender: "male"
country:
  name: "United States"
  isoCode: "US"
category:
  name: "Writers"
  slug: "writers"
profileType:
  name: "Writer / Author"
  slug: "writer"
birthDate: "1902-06-15"
deathDate: "1978-04-08"
livingStatus: "DECEASED"
scores:
  popularity:           49.38
  momentum:             0
  historical:           15.53096266666667
  currentAttention:     0
  sourceConfidence:     60
  profileCompleteness:  55
  trendDirection:       "FALLING"
ranks:
  global:   null
  country:  null
  category: null
sources:
  - url: "https://bs.wikiquote.org/wiki/Lon_L._Fuller"
    title: "Wikiquote"
    type:  "WEBSITE"
  - url: "https://cs.wikipedia.org/wiki/Lon_L._Fuller"
    title: "Lon L. Fuller"
    type:  "WIKIPEDIA"
  - url: "https://da.wikipedia.org/wiki/Lon_L._Fuller"
    title: "Lon L. Fuller"
    type:  "WIKIPEDIA"
  - url: "https://de.wikipedia.org/wiki/Lon_Fuller"
    title: "Lon Fuller"
    type:  "WIKIPEDIA"
  - url: "https://en.wikipedia.org/wiki/Lon_L._Fuller"
    title: "Lon L. Fuller"
    type:  "WIKIPEDIA"
  - url: "https://es.wikipedia.org/wiki/Lon_Fuller"
    title: "Lon Fuller"
    type:  "WIKIPEDIA"
  - url: "https://fa.wikipedia.org/wiki/%D9%84%D8%A6%D9%88%D9%86_%D9%84%D9%88%D9%88%D8%A7_%D9%81%D9%88%D9%84%D8%B1"
    title: "لئون لووا فولر"
    type:  "WIKIPEDIA"
  - url: "https://fi.wikipedia.org/wiki/Lon_L._Fuller"
    title: "Lon L. Fuller"
    type:  "WIKIPEDIA"
  - url: "https://fr.wikipedia.org/wiki/Lon_L._Fuller"
    title: "Lon L. Fuller"
    type:  "WIKIPEDIA"
  - url: "https://ja.wikipedia.org/wiki/%E3%83%AD%E3%83%B3%E3%83%BB%E3%83%95%E3%83%A9%E3%83%BC"
    title: "ロン・フラー"
    type:  "WIKIPEDIA"
  - url: "https://nl.wikipedia.org/wiki/Lon_Luvois_Fuller"
    title: "Lon Luvois Fuller"
    type:  "WIKIPEDIA"
  - url: "https://pl.wikipedia.org/wiki/Lon_Luvois_Fuller"
    title: "Lon Luvois Fuller"
    type:  "WIKIPEDIA"
  - url: "https://pt.wikipedia.org/wiki/Lon_L._Fuller"
    title: "Lon L. Fuller"
    type:  "WIKIPEDIA"
  - url: "https://ru.wikipedia.org/wiki/%D0%A4%D1%83%D0%BB%D0%BB%D0%B5%D1%80%2C_%D0%9B%D0%BE%D0%BD_%D0%9B%D1%8C%D1%8E%D0%B8%D1%81"
    title: "Фуллер, Лон Льюис"
    type:  "WIKIPEDIA"
  - url: "https://sv.wikipedia.org/wiki/Lon_L._Fuller"
    title: "Lon L. Fuller"
    type:  "WIKIPEDIA"
  - url: "https://tr.wikipedia.org/wiki/Lon_L._Fuller"
    title: "Lon L. Fuller"
    type:  "WIKIPEDIA"
  - url: "https://uk.wikipedia.org/wiki/%D0%9B%D0%BE%D0%BD_%D0%9B._%D0%A4%D1%83%D0%BB%D0%BB%D0%B5%D1%80"
    title: "Лон Л. Фуллер"
    type:  "WIKIPEDIA"
  - url: "https://zh.wikipedia.org/wiki/%E6%9C%97%C2%B7%E7%9B%A7%E7%A6%8F%E7%93%A6%C2%B7%E5%AF%8C%E5%8B%92"
    title: "朗·盧福瓦·富勒"
    type:  "WIKIPEDIA"
  - url: "https://www.wikidata.org/wiki/Q286431"
    title: "Wikidata"
    type:  "WIKIDATA"

# bio (long form, separated for readability)
bio: |
  Imported from discovery source: wikidata-dump