名詞 axiom:

1. a saying that is widely accepted on its own merits
   同義詞：maxim
2. (logic) a proposition that is not susceptible of proof or disproof; its truth is assumed to be self-evident

ax.i.om

n.（名詞）
A self-evident or universally recognized truth; a maxim:
公理，自明之理：不言而喻的或普遍被認定的真理；格言，規(guī)則：
例句：
.It is an economic axiom as old as the hills that goods and services can be paid for only with goods and services.(Albert Jay Nock)
.只有用商品和服務(wù)才能換來商品和服務(wù)，這是和山一樣古老的經(jīng)濟原理.(艾伯特·杰·諾克)

An established rule, principle, or law.
公理，原理，原則：建立起來的規(guī)則、原理、或法律
Abbr. ax.A self-evident principle or one that is accepted as true without proof as the basis for argument; a postulate.
縮寫 ax.格言：不言而喻的原理或能作為真理被接受的規(guī)律，無須作為爭論依據(jù)加以證明；基本原理

來源：
Middle English
中古英語
from Old French axiome
源自 古法語 axiome
from Latin axiôma axiômat-
源自 拉丁語 axiôma axiômat-
from Greek
源自 希臘語
from axios [worthy] * see ag-
源自 axios [有價值的，值得的] *參見 ag-