A doctrine (or set of doctrines) relating to matters such as morality and faith, set forth authoritatively by a religious organization or leader.
An authoritative principle, belief or statement of opinion, especially one considered to be absolutely true and indisputable, regardless of evidence or without evidence to support it.
Doubt or disbelief of religious doctrines
The practice or philosophy of being a skeptic.
The doctrine that absolute knowledge is not possible
A studied attitude of questioning and doubt
A methodology that starts from a neutral standpoint and aims to acquire certainty though scientific or logical observation.