What is another word for "maxim"?

Roget's Thesaurus (1911) lists these synonyms for "maxim": act, adage, admitted, aphorism, aphoristic, apophthegm, apothegm, assumption, axiom, axiomatic, belief, byword, canon, charge, code, command, common, commonplace, conclusion, corpus, dictum, direction, fact, faith, first, form, formula, formulary, gnomic, golden, idea, instruction, judgment, law, lex, moral, mot, motto, norm, order.