'The particular task that Madame Blavatsky undertook in her writings was to bring to the attention of the western world the teachings of the Wisdom tradition, the Sacred Science of the east. Repeatedly she affirmed both the antiquity and the universality of these teachings, known since the early centuries of our era as Theosophy. For herself she claimed only the role of writer and transmitter.
The way in which she saw her task is plainly stated in the Preface to her greatest work, The Secret Doctrine, published in 1888;
These truths are in no sense put forward as a revelation; nor does the author claim the position of a revealer of mystic lore, now made public for the first time in the world's history. For what is contained in this work is to be found scattered throughout thousands of volumes embodying the scriptures of the great Asiatic and early European religions, hidden under glyph and symbol, and hitherto left unnoticed because of this veil. What is now attempted is to gather the oldest tenets together and to make of them one harmonious and unbroken whole.
The work of collecting and publishing all Madame Blavatsky's writings is now nearing completion, to make a total of some nineteen or twenty substantial volumes. The compiler of these Collected Writings, her great-nephew Boris de Zirkoff, informs the reader that a letter published in the New York Daily Graphic on 30 October 1874 was the first article definitely known to be from her pen. In 1877 her first major work, Isis Unveiled, appeared in two large volumes. It was followed eleven years later by the two volumes of The Secret Doctrine. Her last books, The Voice of the Silence and The Key to Theosophy, were published in 1889. If one bears in mind her long and frequent travels and the poor state of her health, with periods of severe illness, this enormous literary output in under seventeen years - and in a language that was not her own - seems little less than miraculous. It is to be noted that, although some letters and articles are awaiting publication in the Collected Writings, the great books have been continuously in print throughout the hundred or so years that have elapsed since their first appearance.'