Synonyms of maxims

1 Syllable
rule, saw, law, truism
2 Syllables
belief, motto, proverb, moral, brocard, tenet, prescript, precept, byword, canon, theorem, axiom, dictum
3 Syllables
apophthegm, epithet, adage, formula, device, aphorism
4 Syllables
commonplace, platitude