De Tribus Impostoribus, A. D. 1230: The Three Impostors / Translated (with notes and comments) from a French manuscript of the work written in the year 1716, with a dissertation on the original treatise and a bibliography of the various editions

by Unknown

II.

Some have said that the Soul is a spirit or an immaterial substance; others, a kind of divinity; some, a very subtile air, and others a harmony of all parts of the body. Again, others have remarked that it is the most subtile and fine part of the blood, which is separated from it in the brain and is distributed by the nerves: so that the source of the Soul is the heart where it is produced, and the place where it performs its noblest function is the Brain, because there it is well purified from the grosser parts of the blood. These are the principal opinions which have been held concerning the Soul, but to render them more perceptible let us divide them into material and spiritual, and name the supporters of each theory that we may not err.