KANT, Immanuel (1724-1804). Critik der practischen Vernunft. Riga: Johann Friedrich Hartknoch, 1788.

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KANT, Immanuel (1724-1804). Critik der practischen Vernunft. Riga: Johann Friedrich Hartknoch, 1788.

8o (201 x 117 mm). Late 19th-century half morocco (spine defective).
FIRST EDITION of the Critique of Practical Reason in which Kant formulates the "categorical imperative" the foundation of modern ethics. See PMM 226 (note); Waller 19813; Warda 112; Norman 1198.