The seven principles, in order
*Mentalism — the All is mind; the universe is mental. Correspondence — as above, so below; as below, so above. Vibration — nothing rests; everything moves; everything vibrates. Polarity — everything is dual; everything has poles; opposites are identical in nature, different in degree. Rhythm — everything flows, out and in; the pendulum-swing manifests in everything. Cause and effect — every cause has its effect; every effect has its cause. Gender — gender is in everything; everything has its masculine and feminine principles*.
Authorship
The book was published by the Yogi Publication Society of Chicago, which is also the publisher under which William Walker Atkinson released his many other New Thought titles under various pseudonyms. The internal evidence — vocabulary, framing, the book's strong New Thought tilt — strongly supports Atkinson as at least one of the three initiates, and most modern scholarship treats him as effectively the sole author.
Honest critique
The Kybalion is not a faithful presentation of the actual Corpus Hermeticum. It is a digestion of the tradition through the New Thought lens of its early-twentieth-century moment. Read it for what it is — a masterpiece of esoteric distillation — rather than for what it sometimes claims to be. As an entry to thinking in correspondences and a working primer for manifestation practice, it remains unmatched.
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