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Tertium Organum: The Third Canon of Thought

By P D Ouspensky
Paperback
$13.25
By P D Ouspensky
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"I have called this system of higher logic Tertium Organum because for us it is the third canon-third instrument-of thought after those of Aristotle and Bacon. The first was Organon, the second, Novum Organum. But the third existed earlier than the first." TERTIUM ORGANUM