A Preface (pp. 9–13; newly added)

B Selection from the First Letter, “The spirit of our age and the present state of the sciences heralds a universal reformation of philosophy” (pp. 22–44; addition inserted at p. 105 of original First Letter)

C Second Letter, “Continuation of the preceding letter: The need for a highest rule of taste, for guiding principles for positive theology and jurisprudence, and, above all, for a first basic principle of natural right and morality” (pp. 44–74; new letter added at p. 105 of original First Letter, following addition “B”)

D Selections from the Third Letter, “The shaking in the domain of the philosophy of religion heralds a reformation of this philosophy: my judgment regarding the Kantian philosophy in general” (pp. 74–7, 84–7, and 90–7; revised and expanded versions of pp. 105–7, 116–18, and 122–3 of original First Letter, respectively)

E Selection from the Fourth Letter, “The result of the Kantian philosophy on the question of God's existence, compared with the general as well as particular results of previous philosophy regarding this subject” (pp. 101–17; addition inserted at p. 132 of original Second Letter)

F Selection from the Eighth Letter, “The result of the Critique of Reason concerning the future life” (pp. 172–8; heavily revised version of pp. 167–72 of the original Fifth Letter)

G Selection from the Ninth Letter, “Elucidation of the metaphysical ground for cognition of the immortality of the soul with regard to its origin as well as its consequences” (pp. 192–203; addition inserted at p. 71 of original Sixth Letter)

H Selection from the Eleventh Letter, “The key to the rational psychology of the Greeks” (pp. 245–51; addition inserted at p. 264 of original Eighth Letter)

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