[12] Those who want to settle by calculation whether the sum total of pleasure or that of pain is bigger, ignore that they are subjecting to calculation something which is nowhere experienced. Feeling does not calculate, and what matters for the real valuing of life is what we really experience, not what results from an imaginary calculation. [13] We disregard here the case where excessive increase of pleasure turns pleasure into pain. [14] Immediately upon the publication of this book (1894), critics objected to the above arguments that, even now, within the generic character of her sex, a woman is able to shape her life individually, just as she pleases, and far more freely than a man who is already de-individualised, first by the school, and later by war and profession. I am aware that this objection will be urged to-day, even more strongly. None the less, I feel bound to let my sentences stand, in the hope that there are readers who appreciate how violently such an objection runs counter to the concept of freedom advocated in this book, and who will interpret my sentences above by another standard than that of man's loss of individuality through school and profession. [15] The Preface and Introduction to the original edition of "Truth and Science" are printed as Appendix III and Appendix IV at the end of this volume. [16] l.c., p. 20. [17] cf. Kant, Critique of Pure Reason, Intr. to 2nd edit., Section vi. [18] Prolegomena, Section v. [19] Critique of Pure Reason, Intr., Section iv. [20] cf. his Analyse der Wirklichkeit, Gedanken und Tatsachen. [21] "Possible" here means merely conceivable. [22] cf. Die Welt als Wahrnehmung und Begriff, pp. 161 ff. [23] This attempt, by the way, is one which the objections of Robert Zimmermann (Über Kant's mathematisches Vorurteil und dessen Folgen) show to be, if not wholly mistaken, at least highly questionable. [24] Critique of Pure Reason, Intr. to 2nd edit., Section ii. [25] cf. Kant's Theorie der Erfahrung, pp. 90 ff. [26] l.c., Section v. [27] cf. Kant's Theorie der Erfahrung, pp. 90 ff. [28] cf. Die Grundsätze der reinen Erkenntnistheorie in der Kantischen Philosophie, p. 76. [29] l.c., p. 21. [30] Zur Analyse der Wirklichkeit, pp. 211 ff. [31] Darstellung der Kantischen Erkenntnistheorie, p. 14. [32] Vierteljahrsschrift für Wissenschaftliche Philosophie, 1877, p. 239. [33] System der Logik, 3rd edit., pp. 380 ff. [34] Kritische Grundlagen des Transcendentalen Realismus, pp. 142-172.