Sabatier, [299].

Sacrifice, [297-99].

Santayana, [65], [130], [174], [250], [335], [338], [345], [347], [355], [430], [456].

Schopenhauer, [95], [344].

Science, æsthetic aspect of, [63]; and common sense, [381-87]; and progress, [xi-xiii], [379], [407-10]; and religion, [311-22]; as explanation of natural phenomena, [369-75], classification in, [242], [397-98]; definition of, [368]; experimentation in, [399-401]; imagination in, [73-75], [339-41], [375]; innovation in, [105]; observation in, [395-97], [402-05]; practical, [63-64], [377-81]; primitive, [61-62]; pure, [373-81], [410]; social, [405-07].

Scientific inquiry, curiosity and, [62], [369], [387-89]; law, [61], [371]; method, [58], [61-62], [381-402].

Self-assertion, [167-69]; consciousness of the, [12-13], [161-64]; development of, [139], [148-51], [157-59]; display, [165]; preservation, [4], [67]; sufficiency, [166]; surrender, [116], [172-73], [293-94]; satisfaction and dissatisfaction, [159-61]; the divided, [154-55]; the negative, [171-73]; the permanent, [151-52], [156-59]; the social, [149-51], [157]; types of the, [164-78].

Sense satisfaction basis of æsthetic experience, [345-46].

Sex, and creative activity, [69]; and racial continuity, [243]; influence of on individual differences, [190-95]; instinct of, [67-69].

Shakespeare, [355].