Ortt, Felix (1866-1959)

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Ortt, Felix (1866-1959)

Dutch engineer who developed a philosophy of "pneumatic-energetic monism," proposing that a spirit revealed itself under energy and entelechy. Ortt wrote on parapsychological subjects, including a theory of temperature drop in relation to psychical phenomena and "Philosophy of Occultism and Spiritualism," on concepts of substantiality and causality.

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