"“Descartes, whose ideological influence on the Scientific Revolution is hard to overestimate, was deeply committed to the introspective examination of the mind. But like his Greek and Christian predecessors, he did not devise any means to refine the attention so that the mind could reliably be used to observe mental events… Moreover, in a theological move that effectively removed the human mind from the natural world, Descartes decreed that the soul is divinely infused into the body, where it exerts its influence on the body by way of the pineal gland… This philosophical stance probably accounts in large part for the fact that the Western scientific study of the mind did not even begin for more than two centuries after Descartes.”"