Immanuel Kant 
Kant’s Critique of Practical Reason and Other Works on the Theory of Ethics [PDF ebook] 

Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. I. Of the Deduction of the Principles of Pure Practical Reason, II. Of the Right of Pure Reason in its Practical Use Extension which is not possible to it in its Speen Use.