Theosophy. Online Library of Resources & Books on Theosophy: AnandGholap.net.
Isis Unveiled. The Key to Theosophy by H. P. Blavatsky. Theosophical University Press Online Edition Being a Clear Exposition, in the Form of Question and Answer, of the ETHICS, SCIENCE, AND PHILOSOPHY for the Study of which The Theosophical Society has been Founded.
Originally published 1889. Helena Blavatsky. Helena Petrovna Blavatsky (Russian: Еле́на Петро́вна Блава́тская, Ukrainian: Олена Петрівна Блаватська), born as Helena von Hahn (Russian: Елена Петровна Ган, Ukrainian: Олена Петрівна Ган; 12 August [O.S. 31 July] 1831 – 8 May 1891), was a Russian occultist.[1] In 1875, Blavatsky, Henry Steel Olcott, and William Quan Judge established a research and publishing institute called the Theosophical Society.
Blavatsky defined Theosophy as "the archaic Wisdom-Religion, the esoteric doctrine once known in every ancient country having claims to civilization. "[2] One of the main purposes of the Theosophical Society was "to form a nucleus of the Universal Brotherhood of Humanity, without distinction of race, creed, sex, caste or color".[3] Blavatsky saw herself as a missionary of this ancient knowledge. The Theosophical Society had a major influence on Buddhist modernism and Hindu reform movements, and the spread of those modernised versions in the west.