Radicalism, 145 _ff._ Rationality, 37, 42, 65; and progress, 134, 142; in government, 152. Reform, 134 _ff._ Religion, 79, 81; and good-will, 113; mysticism in, 117; as an institution, 148; and progress, 170; moral justification of, Ch. VI; moral necessity of, 214 _ff._; definition of, 215 _ff._; quantitative tests of, 218 _ff._; psychological study of, 220; belief in, 216, 220; therapeutic test of, 222 _ff._; superstitious, 232 _ff._; primitive, 233 _ff._; and ethics, 224 _ff._, 233, 240, 241, 252; cosmological test of, 224, 225, 234, 237, 240, 241, 252; tutelary, 237 _ff._; Assyrian, 238; Egyptian, 238; Hebrew, 227, 239; philosophical, 241 _ff._; generic proof of, 252 _ff._ See Piety, Good-will, Worship and Christianity. Revolution, definition of, 139; the Christian, 140; the French, 141. Rightness, 18. See Virtue. Satisfaction, 11, 79, 81, 83. Scepticism, 4 _ff._, 36, 108. Sentimentalism, 98 _ff._, and art, 209. Society, Chap. I, _passim_, 38; prudential basis of, 89; character of modern, 39, 166; progress in, 126, 132; continuity of, 143; and the aesthetic interest, 195, 211. Sophocles, quoted, 102, 151. Sordidness, 79, 81, 94. Spinoza, quoted, 35. Stoics, religion of, 245. See Epictetus. Struggle for existence, 30; its relation to morality, 21 _ff._; its relation to progress, 130. Superstition, 232 _ff._ Survival, 24, 131. Tact, 88. Taine, quoted, 185. Taylor, J., quoted, 86, 94. Temperance, 90. Thrift, 68, 87. Thucydides, quoted, 156. Tolerance, 38, 105, 164. Tolstoy, on art, 207. Truth, of art, 205 _ff._; of religion, 220 _ff._ Truthfulness, 96. See Veracity. Tyranny, 36, 39, 151 _ff._ Value, the simpler terms of, 11, 82; definition of moral, 15; varieties of moral, 79, 81. Veracity, 88, 96, 105. Vice, varieties of, 79, 81. See Virtue, Formalism, and Materialism. Virtue, the order of, Ch. III; verification of, 73; varieties of, 73, 79; classification of, 73 _ff._; table of, 81. See under particular virtues, Prudence, etc. War, and morality, 24 _ff._, 30; the passing of, 28, 162; and progress, 131. Wells, H. G., quoted, 89, 167. Worldliness, 79, 81, 110 _ff._ Worship, 122, 232, 235, 237, 240. Xenophanes, quoted, 326.