Credo (noun)

1. A statement of the beliefs or aims that guide someone's actions.
2. A statement of the beliefs of a particular religion, organization, or individual.
3. A set of principles or beliefs.

Origin:

Late latin, from latin, i believe.

Examples:

1. The company's credo is to always put the customer first.
2. The credo of the organization is to promote peace and understanding.
3. The credo of the religion is to love and respect all living things.
4. The credo of the individual is to always be honest and fair.
5. The artist's credo was to always be true to oneself.