Passions, unquiet Humors, Grief, Pain, Sadness, Sickness, and the like; through which, Man seems to be more restless, than any other Creature: but, whether the cause be in the Manner, or Form of Man's Composition, or occasioned by some Irregularities; I will leave to those who are wiser than I, to judg. But this is to be noted, That the more Changes and Alterations the Rational and Sensitive Motions make, the more variety of Passions and Appetites the Man hath: also, the quicker the Motions are, the sharper Appetite, and the quicker Wit, Man hath. But, as all the Human Senses are not bound to one Organ; so all Knowledges are not bound to one Sense, no more than all the Parts of Matter to the composition of one particular Creature: but, by some of the Rational and Sensitive actions, we may perceive the difference of some of the Sensitive and Rational actions; as, Sensitive Pain, Rational Grief; Sensitive Pleasure, Rational delight; Sensitive Appetite, Rational Desire; which are sympathetical actions of the Rational and Sensitive Parts: Also, through sympathy, Rational Passions will occasion Sensitive Appetites; and Appetites, the like Passions. CHAP. XVIII. Of the Rational Actions of the Head and Heart of Human Creatures. As I formerly said, In every Figurative Part of a Human Creature, the Actions are different, according to the Property of their different Composers; so that the Motions of the Heart are different to the Motions of the Head, and of the other several Parts: but, as for the Motions of the Head, they are (in my Opinion) more after the manner of Emboss'd Figures; and those of the Heart, more after the manner of Flat Figures; like Painting, Printing, Engraving, _&c._ For, if we observe, the Thoughts in our Heads are different from the Thoughts in our Hearts. I only name these two Parts, by reason they seem to sympathize, or to agree, more particularly to each other's actions, than some of the other Parts of Human Creatures. CHAP. XIX. Of Passions and Imaginations.