Mawson, C.O.S., ed. (1870–1938). Roget’s International Thesaurus. 1922.

Class IV. Words Relating to the Intellectual Faculties
Division (I) Formation of Ideas
Section V. Results of Reasoning

496. Maxim.

   NOUN:MAXIM, aphorism; apothegm or apophthegm; dictum, saying, adage, saw, proverb, epigram, gnomic saying, gnome, sentence, mot [Gallicism], motto, word, byword, bromidium [slang], commonplace, moral, phylactery, protasis [rare].
  wise -, sage -, received -, admitted -, recognized- maxim &c.; true -, common -, hackneyed -, trite -, common- place- saying &c.
  AXIOM, theorem, scholium, truism, postulate.
  PRINCIPLE, principia; profession of faith (belief) [See Belief]; settled principle, formula; reflection (idea) [See Idea]; conclusion (judgment) [See Judgment]; golden rule (precept) [See Precept].
   ADJECTIVE:APHORISTIC, aphorismic, aphorismatic, proverbial, phylacteric; axiomatic or axiomatical, gnomic or gnomical.
   ADVERB:as the saying is, as they say, as it was said by them of old.
   QUOTATION:Full of wise laws and modern instances.—As You Like It