Basilidean (System). Named after Basilides; the Founder of one of the most philosophical gnostic sects. Clement the Alexandrian speaks of Basilides, the Gnostic, as “a philosopher devoted to the contemplation of divine things”. While he claimed that he had all his doctrines from the Apostle Matthew and from Peter through Glaucus, Irenaeus reviled him, Tertullian stormed at him, and the Church Fathers had not sufficient words of obloquy against the “heretic”. And yet on the authority of St. Jerome himself, who describes with indignation what he had found in the only genuine Hebrew copy of the Gospel of Matthew (See Isis Unv., ii., 181) which he got from the Nazarenes, the statement of Basilides becomes more than credible, and if accepted would solve a great and perplexing problem. His 24 vols. of Interpretation of the Gospels, were, as Eusebius tells us, burnt. Useless to say that these gospels were not our present Gospels. Thus, truth was ever crushed.
Source: H.P.Blavatsky - The Theosophical Glossary