ABSTRACT
The performance of a compound action in response to a compound impression, implies something more than a susceptibility to each of the several elements constituting the compound impression, and a power to effect each of the several motions constituting the compound action. It implies also, that the constituent sensations and contractions shall be combined after a particular manner—shall be co-ordinated; and the perfection of the correspondence will vary as the perfection of the co-ordination. A still higher species of co-ordination, growing imperceptibly out of the last, and vaguely seen even in the illustrations just given, involves not simply the union of past with present specialities, but the union of generalities with both. Undeveloped life is guided by the associations among some of the superficial attributes of things. Developed life is guided by the relations subsisting among all those fundamental attributes on which the actions of the things depend.
