Can you cite a philosopher who thought legislating moral values esp those based on one religion is a bad idea?

Question

There are many who have made the point. But can you cite one of them together with the title of the authored work where they made the point.

philosophical hints; John Stuart Mill wrote "On Liberty" and John Locke wrote " A Second Treatise on Government."

All three answers are good enough to deserve BA

Answer 1

Friedrich Nietzsche's On the Genealogy of Morality

actually... almost all of his work talks about that at some point..

Answer 2

Jeremy Bentham: Principles of Morals and Legislation, 1791 Classic presents argument for the priority of the principle of utility (whatever promotes happiness) in social ethics over religious and political uses of the fear of punishment.

Answer 3

Try Rawls' "Political Liberalism". He argues that membership in any particular religious or philosophical group is trivial but membership in a society is not; therefore any law should be reasonable to any citizen regardless of religious of philosophical background.