Evolution of Man. For it must be realized that the evolution of man is a process still going on, and by no means yet complete. Darwinian writings hav… - Alfred Percy Sinnett

Men of science in former ages worked in secret, and instead of publishing their discoveries, taught them in secret to carefully selected pupils. Their motives for adopting that policy are readily intelligible, even if the merits of the policy may seem still open to discussion. At all events, their teaching has not been forgotten; it has been transmitted by secret initiation to men of our own time, and while its methods and its practical achievements remain secrets in their hands, it is open to any patient and earnest student of the question to satisfy himself that these methods are of supreme efficacy, and these achievements far more admirable than any yet standing to the credit of modern science. (Introduction)

It will readily be supposed that the chain of worlds to which this earth belongs are not all prepared for a material existence exactly, or even approximately resembling our own. There would be no meaning in an organized chain of worlds which were all alike, and might as well all have been amalgamated into one. In reality the worlds with which we are connected are very unlike each other, not merely in outward conditions, but in that supreme characteristic, the proportion in which spirit and matter are mingled in their constitution. Our own world presents us with conditions in which spirit and matter are on the whole evenly balanced in equilibrium. Let it not be supposed on that account that it is very highly elevated in the scale of perfection. On the contrary, it occupies a very low place in that scale. The worlds that are higher in the scale are those in which spirit largely predominates. There is another world attached to the chain, rather than forming a part of it, in which matter asserts itself even more decisively than on earth, but this may be spoken of later.

Preface to the Annotated Edition Since this book was first published in the beginning of 1883, I have come into possession of much additional information bearing on many of the problems dealt with. But I am glad to say that such later teaching only reveals incompleteness in my original conception of the esoteric doctrine, - no material error so far. Indeed I have received from the great Adept himself, from whom I obtained my instruction in the first instance, the assurance that the book as it now stands is a sound and trustworthy statement of the scheme of Nature as understood by the initiates of occult science, which may have to be a good deal developed in the future, if the interest it excites is keen enough to constitute an efficient demand for further teaching of this kind on the part of the world at large, but will never have to be remodelled or apologized for. In view of this assurance it seems best that I should now put forward my later conclusions and additional information in the form of annotations on each branch of the subject, rather than infuse them into the original text, which, under the circumstances, I am reluctant in any way to alter. I have therefore adopted that plan in the present edition.