Mohammedanism growth of, during the Middle Ages, 370–372; first contact with Christianity, 372, 373; conflict with Christianity, 374, 375. Monism defined, 10 n.; of the early Greeks, 10; displaced by pluralism in Greek philosophy, 39. Monists list of early Cosmologists who were, 20; discussion of the, 22–38. Monotheism defined, 10 n.; for the first time conceptually framed, 191. Monte Cassino founding of the monastic school at, 348. Moral postulate philosophy for the first time founded upon, 85; of Socrates, 85–88. Motion according to Aristotle, 195, 196. Mysteries Orphic and Eleusinian, 16–18, 38; Orphic, dangers of, averted by Cosmologists, 54. Mysticism in neo-Platonism, 287. Natural Science _See_ Physics. Nature the philosophy of, 15–38; the word as used by the Sophists, 72, 73; a logical, Socrates’ attempt to find, 92; physical, Plato’s conception of, 142–144; Aristotle’s conception of, 192–194; Stoic conception of, 251–257. Neo-Platonism and Christianity, difference in their conception of inspiration, 276, 277; rise of, 279, 280; summary of its history, 281; and Platonism, 287, 288; and the philosophies of Philo and the neo-Pythagoreans, 288; and Christianity, 288–290; the periods of, 290; the Alexandrian school (scientific theory of neo-Platonism, life and writings of Plotinus), 290–298; the Syrian school (the systematizing of polytheism, Jamblichus), 290, 298, 299; the Athenian school (Proclus), 290, 299–301; its influence on Christianity, 306. Neo-Pythagoreanism 281, 285–287; and neo-Platonism, 288. Nominalism 103, 358, 362–365, 391, 392. Norton, Arthur O. _Readings in the History of Education_, 377 n. _Nous_ Anaxagoras’ conception of, 47; of Plotinus, 294. Numbers Pythagorean conception of, 49–51. Objective character of Greek philosophy 2, 100, 101. Objective Idealism 104. Objective Realism 104. Ockam, William of 387 n., 390; the course of philosophy after, 393, 394. Order thought of, developed into clearness by Cosmologists, 54. Origen 280, 281, 314–318. Orphic _See_ Mysteries. Oxford, University of 377. Palmer, G. H. on Socrates, 79. Panætius 270, 271. Pantheism defined, 10 n.; dynamic, of Plotinus, 293; of Erigena, 351–353; of the realists, 363. Paris, University of 377. Parker, C. P. cited, 258 n. Parmenides life, 32; develops the doctrine of Xenophanes, 32 f.; his philosophy, 33–35; and Heracleitus, results of the conflict between, 37, 38. _See_ Eleatic School. Particulars and Universals according to Thomas Aquinas, 383–385. Pater, Walter _Marius the Epicurean_, 227 n. Patmore, Coventry _Angel in the House_, 153 n.