Chapter XXV.

Whether Sleep or Death Appertains to the Soul or Body.

Aristotle's opinion is, that both the soul and body sleep; and this proceeds from the evaporation in the breast, which doth steam and arise into the head, and from the aliment in the stomach, whose proper heat is cooled in the heart. Death is the perfect refrigeration of all heat in body; but death is only of the body, and not of the soul, for the soul is immortal. Anaxagoras thinks, that sleep makes the operations of the body to cease; it is a corporeal passion and affects not the soul. Death is the separation of the soul from the body. Leucippus, that sleep is only of the body; but when the smaller particles cause excessive evaporation from the soul's heat, this makes death; but these affections of death and sleep are of the body, not of the soul. Empedocles, that death is nothing else but separation of those fiery parts by which man is composed, and according to this sentiment both body and soul die; but sleep is only a smaller separation of the fiery qualities.