Full Idea
English and American law still [in1963] contain rules which suppress practices condemned as immoral by positive morality though they involve nothing that would be ordinarily thought of as harm to other persons.
Clarification
'positive' morality is the general current consensus
Gist of Idea
Modern law still suppresses practices seen as immoral, and yet harmless
Source
H.L.A. Hart (Law,Liberty and Morality [1963], II 'Use')
Book Reference
Hart,H.L.A.: 'Law,Liberty and Morality' [OUP 1968], p.25
A Reaction
He says most of the examples of this concern sexual practices. In the UK we have moved away from such laws, but many states of the USA still maintain them (or are reintroducing them, in 2023).