"By-the-bye you must not trust Isis literally. The book is but a tentative effort to divert the attention of the Spiritualists from their preconceptions to the true state of things. The author was made to hint and point out the true direction, to say what things are not, not what they are. Proof readers helping, a few real mistakes have crept in as on page i, chapter i, volume i, where divine Essence is made emanating from Adam instead of the reverse."
January 1, 1970
https://en.wikiquote.org/wiki/Isis_Unveiled