On Mr. Spencer's Unification of Knowledge

abstract abstract laws action actual aggregate atoms attraction and repulsion Bain Biology body brain cause changes chapter chemical affinity chemical elements colloids complex conception concomitant concrete connection consciousness Conservation of Energy consider constitution Continuity of Motion corollaries cosmos deductive differentiation double aspect Double-Aspect Theory effect energy environment equilibration existence explanation external fact feeling Formula of Evolution homogeneous implies incident forces inorganic interrelations knowable laws logical manifestations Matter and Motion mechanical mental merely methods mind modes molecules moving equilibrium natural selection nature nerve objective organic matter organised original factors oxygen Persistence of Force phenomena Philosophy physical physiological units polarity primordial Principles produced properties proposition Psychology question recognise regarded relations Relativity of Knowledge resistance result sense sequences solar system Spencer says structure subjective aspect substances suppose symbols things thought tion truth unification of knowledge universal Unknowable Power