The Description of the Human Body He believed the heat of the heart somehow caused all movement of the body. Blood vessels he realized were pipes, he saw that veins carried digested food to the heart. (This was brought further by William Harvey. Harvey developed the idea of the circulation of the blood.) Descartes felt that an energetic part of blood went to the brain and there gave the brain a special type of air imbued with vital force that enabled the brain to experience, think and imagine. This special air then went through the nerves to the muscles enabling them to move. The Description of
James VI and I and the English Parliament the Crown, the king should take its views on policy formulation and execution into account. The end result of this fundamental disagreement was a series of difficult parliaments, two of which James dissolved in frustration. Many historians, from the mid-seventeenth century to the present, have traced the problems with Parliament faced by James's son, Charles I, to those experienced by James, though others have questioned the inevitability of Charles's fatal clashes with Parliament. In 1597–8, James wrote two works, "The Trew Law of Free Monarchies" and "Basilikon Doron" (Royal Gift), in which he established an ideological base for monarchy. In