Tenet

King James Dictionary

Ten'Et, n. L. tenet, he holds. Any opinion, principle, dogma or doctrine which a person believes or maintains as true as the tenets of Plato or of Cicero. The tenets of christians are adopted from the Scriptures but different interpretations give rise to a great diversity of tenets.

Webster's Dictionary

(n.) Any opinion, principle, dogma, belief, or doctrine, which a person holds or maintains as true; as, the tenets of Plato or of Cicero.