Prolegomena to Any Future Metaphysics

The greatest of all modern philosophers was born in the Baltic seaport of Konigsberg, East Prussia, the son of a saddler and never left the vicinity of his remote birthplace. Through his family pastor, Immanuel Kant received the opportunity to study at the newly founded Collegium Fredericianum, proceeding to the University of Konigsberg, where he was introduced to Wolffian philosophy and modern natural science by the philosopher Martin Knutzen. From 1746 to 1755, he served as tutor in various households near Konigsberg. Between 1755 and 1770, Kant published treatises on a number of scientific and philosophical subjects, including one in which he originated the nebular hypothesis of the origin of the solar system. Some of Kant's writings in the early 1760s attracted the favorable notice of respected philosophers such as J. H. Lambert and Moses Mendelssohn, but a professorship eluded Kant until he was over 45.

In 1781 Kant finally published his great work, the Critique of Pure Reason. The early reviews were hostile and uncomprehending, and Kant's attempt to make his theories more accessible in his Prolegomena to Any Future Metaphysics (1783) was largely unsuccessful. Then, partly through the influence of former student J. G. Herder, whose writings on anthropology and history challenged his Enlightenment convictions, Kant turned his attention to issues in the philosophy of morality and history, writing several short essays on the philosophy of history and sketching his ethical theory in the Foundations of the Metaphysics of Morals (1785). Kant's new philosophical approach began to receive attention in 1786 through a series of articles in a widely circulated Gottingen journal by the Jena philosopher K. L. Reinhold. The following year Kant published a new, extensively revised edition of the Critique, following it up with the Critique of Practical Reason (1788), treating the foundations of moral philosophy, and the Critique of Judgment (1790), an examination of a