Chap. 37. The Sympathy of the Rational and Sensitive Spi∣rits, to the Fgure they make, and inhabit.
ALL the External motion in a Figure, is, by the sensitive spirits; and all the internal, by the rational spirits: and and when the rational and sensitive spirits, disagree in opposite figures, by contrary motion, they oft war upon one another; which to defend, the sensitive Spirits and rational spirits, use all their force, and power in either Figure; to defend, or to assault, to succour, or to destroy, through an aversion made by contrary motions in each other.
Now the rational spirits do not onely choose the materials for their defence, or assault, but do direct the sensitive spirits in the management thereof; and according to the strength of the spi∣rits of either side, the victory is gain'd, or lost. If the Body be weak, there is like sensitive spirit, if the direction be not advantagious, there is lesse rational spirit. But many times the Alacrity of the rational and sensitive spirits, made by mo∣ving in a regular motion, overcoms the greater numbers, being in a disordered motion. Thus what is lost by Scarcity, is regain'd by Conformity and Vnity.