Aristotle, his opinion of the popular polytheism of Greece, 157; his classification of causes, 280, 404, 405; his misrepresentations of Pythagoras, 299; his classification of the sciences, 389; his Organon, 389-394; his Logic, 394-403; his Theology, 404-417; his Ethics, 417-421; his Categories, 395; his logical treatises, 396; on induction and deduction, 396-398; his psychology, 398, 401; on how the knowledge of first principles is attained, 394, 402, 403; on Matter and Form, 405-408; on Potentiality and Actuality, 408-412; his proof of the Divine existence, 412-415; on the chief good of man, 419, 420; his doctrine of the Mean, 420, 421; defect of his ethical system, 505.

[ Ἀρχαί], or first principles, the grand object of investigation in Greek Philosophy, 271, 274, 279, 280.

Athenians, criticism on Plutarch's sketch of their character, 45; their vivacity, 45; love of freedom, 46--and of country, 46; private life of, 47; intellectual character of, 48; inquisitive and analytic, 48; rare combinations of imagination and reasoning powers, 49; religion of, 98; the Athenians a religious people, 102; their faith in the being and providence of God, 107; their consciousness of dependence on God, 110, 116; their religious emotions, 117; their deep consciousness of sin and guilt, 122-124; their sense of the need of expiation, 124, 125; their religion exerted some wholesome moral influence, 162, 163.

Athens, topography of 27; the Agora, 28; its porticoes, 29; the Acropolis, 30; its temples, 31; the Areopagus, 33; sacred objects in, 98, 99; images of the gods, 99; localities of schools of philosophy in, 266-268.

Attica, geographical boundaries of, 26; a classic land, 34; its geographical and cosmical conditions providentially ordained for great moral ends, 34, 35; soil of, not favorable to agriculture, 40--necessitated industry and frugality, 41; the climate of, 41--its influence on the mental character of the people, 42.

B.

Bacon, his assertion that the search after final causes had misled scientific inquirers, 222.

C.

Categories of Aristotle, 395.

Causality, principle of, 189; assailed by the Materialists, 194--especially by Comte, 203-209; the intuition of power a fact of immediate consciousness, 204; consciousness of effort the type of all force, 211; Aristotle on Causality, 413; ætiological proof of existence of God, 487-489.