An Entity's Belief System is the Entity's pattern of beliefs.
A Belief System is a Philosophy that an Entity believes in. The Philosophy is often implicitly defined & sensitive to context, while heavily inspired by an explicitly defined philosophy.
Ideals & Religions are examples of Belief Systems.
Cultural Definition
A system of beliefs.
A "belief system" is a set of mutually supportive beliefs. The beliefs of any such system can be classified as religious, philosophical, ideological, or a combination of these. Philosopher Jonathan Glover says that beliefs are always part of a belief system, and that tenanted belief systems are difficult for the tenants to completely revise or reject.
Pattern Expression
All Entities have a Belief System.