"Now as we have no voluntary Imperium at all, upon the Systole and Diastole of the Heart, so are we not conscious to our selves of any Energy of our own Soul that causes them, and therefore we may reasonably conclude from hence also, that there is some Vital Energy, without Animal Fancy or Synaesthesis, express Consciousness and Self-perception."
— Cudworth, Ralph (1617-1688)
(I.iii, pp. 160-1)
Ralph Cudworth, The True Intellectual System of the Universe: Wherein all the Reason and Philosophy of Atheism is Confuted and its Impossibility Demonstrated (London: Royston, 1678). <Link to EEBO>
See also Cudworth, Ralph. The True Intellectual System of the Universe: The First Part; Wherein All the Reason and Philosophy of Atheism is confuted, 2nd ed., 2 vols. (London: Printed for J. Walthoe, D. Midwinter, J. and J. Bonwick, W. Innys, R. Ware, 1743). <Link to ECCO>