The first part includes chapters on taste as a kind of common sense, on beauty as the symbol of morality, and on "nature as a might".  
Part 2 of this book includes a chapter "on the peculiarity of the human understanding that makes the concept of a natural purpose possible for us," and is followed by an appendix on methodology that concludes by considering "what kind of assent results from a practical faith."  The first part includes chapters on taste as a kind of common sense, on beauty as the symbol of morality, and on "nature as a might".  The second part, which deals with teleology, is much less popular than the first part, which includes sections on the beautiful and the sublime.  It famously concludes that art is purposiveness without purpose, and followed upon two other books that considered metaphysics and ethics.  FTP, name this 1790 book by Immanuel Kant, the third of his major critiques.
Part 2 of this book includes a chapter "on the peculiarity of the human understanding that makes the concept of a natural purpose possible for us," and is followed by an appendix on methodology that concludes by considering "what kind of assent results from a practical faith."  
the Critique of Judgment or Kritik der Urteilskraft