The Summary of Physics Restored

208The active principles of every kind of plant or animal are spiritual. Bodies are the passive instruments of spirits, through which the spirits exercise the faculties of sense and unfold their powers in manifold activities as the authors of those activities. Thus life in general may rightly be called a harmony of actions, or a continuous actuality, varied through the multiplicity of its actions, flowing from a spiritual source and unfolded through its bodily instruments.