THESAURUS
Axiom
a belief, a priori principle, a priori truth, absolute fact, accepted fact, actual fact, adage, admitted fact, affirmation, ana, analects, aphorism, apothegm, apriorism, article of faith, assertion, assumed position, assumption, bald fact, bare fact, basis, brocard, brutal fact, byword, canon, catchword, categorical proposition, center, circumstance, cold fact, collected sayings, conceded fact, conjecture, core, current saying, data, datum, demonstrable fact, dictate, dictum, distich, doctrine, dogma, elixir, empirical fact, epigram, essence, essential, established fact, expression, fact, fact of experience, first principles, flower, focus, formula, foundation, fundamental, gist, given fact, gnome, golden rule, golden saying, gravamen, ground, guesswork, hard fact, heart, hypostasis, hypothesis, hypothesis ad hoc, indisputable fact, inescapable fact, inference, inner essence, kernel, law, lemma, major premise, marrow, matter of fact, maxim, meat, minor premise, moral, mot, motto, naked fact, not guesswork, not opinion, nub, nucleus, nuts and bolts, oracle, philosopheme, philosophical proposition, phrase, pith, pithy saying, plain, position, positive fact, postulate, postulation, postulatum, precept, premise, prescript, presumption, presupposal, presupposition, principium, principle, proposition, propositional function, provable fact, proverb, proverbial saying, proverbs, quid, quiddity, quintessence, rule, salient fact, sap, saw, saying, self-evident fact, self-evident truth, sentence, sententious expression, set of postulates, settled principle, significant fact, simple fact, sloka, sober fact, soul, spirit, statement, stock saying, stubborn fact, stuff, substance, sumption, supposal, supposing, supposition, surmise, sutra, teaching, tenet, text, the case, the nitty-gritty, theorem, thesis, truism, truth, truth table, truth-function, truth-value, undeniable fact, universal truth, verse, well-known fact, wisdom, wisdom literature, wise saying, witticism, word, words of wisdom, working hypothesis
ROGET THESAURUS
Axiom
Maxim
N
maxim, aphorism, apothegm, apophthegm, dictum, saying, adage, saw, proverb, sentence, mot, motto, word, byword, moral, phylactery, protasis, axiom, theorem, scholium, truism, postulate, first principles, a priori fact, assumption (supposition), reflection, conclusion, golden rule, principle, principia, profession of faith, settled principle, accepted principle, formula, accepted fact, received truth, wise maxim, sage maxim, received maxim, admitted maxim, recognized maxim, true saying, common saying, hackneyed saying, trite saying, commonplace saying, aphoristic, proverbial, phylacteric, axiomatic, gnomic, as the saying goes, as the saying is, as they say.