The fundamental principle enunciated by Bahá’u’lláh ... is
- that religious truth is not absolute but relative,
- that Divine Revelation is a continuous and progressive process,
- that all the great religions of the world are divine in origin,
- that their basic principles are in complete harmony,
- that their aims and purposes are one and the same,
- that their teachings are but facets of one truth,
- that their functions are complementary,
- that they differ only in the nonessential aspects of their doctrines, and
- that their missions represent successive stages in the spiritual evolution of human society....
