Doctrines
Owing to the multiplicity and divergence of Gnostic theories, a detailed exposition in this article would be unsatisfactory and confusing and to acertain extent even misleading, since Gnosticism never possessed a nucleus of stable doctrine, or any sort of depositum fidei round which a number of varied developments and heresies or sects might be grouped; at most it had some leading ideas, which are more or less clearly traceable in different schools. Moreover, a fair idea of Gnostic doctrines can be obtained from the articles on leaders and phases of Gnostic thought (e.g. BASILIDES; VALENTINUS; MARCION; DOCETAE; DEMIURGE). We shall here only indicate some main phases of thought, which can be regarded as keys and which, though not fitting all systems, will unlock most of the mysteries of the Gnosis.