Though these natural laws touch one of the most vital of human activities they obviously do not exhaust the whole of man's moral life. They have nothing to say on such topics as polygamy, the study of Marx, the worship of God, the progressive income tax, or the subjugation of women. If the question be raised whether any of these subjects, or others like them, should be taken as objects of legislation, that question relates to what I have called the external morality of law."
- Lon L. Fuller, The Morality of Law (1964 revised ed.) p96
With reference to his debate with HLA Hart, critically discuss the distinction Fuller draws between law's internal and external moralities.