Critique of practical reason Book

Immanuel Kant is what I suppose one would call a 'practical philosopher' in that he is not primarily concerned with the more abstract thoughts of philosophy. Rather his philosophy, as expressed in this book, is one about how practical philosophy, or practical reason, works. He makes a distinction at the beginning of his book between the subjective and the objective, suggesting that practical reason is about making the subjective objective.

This book begins with a section about defining practical reason and its applications. In other words, this is a work which does discuss the abstract concepts of philosophy, such as good and evil or morality. But it is not a work which broadly or ambiguously leaves questions to the reader as much as it is a work which seeks to define those questions in more concrete manners.

One particular thought that Kant reaches is that morality and the existence of morality is theoretical proof for the existence of God (or at least of some higher power). I cannot explain his reasoning, though it read as sound and logical, however I do recommend that, if that vein of argument interests you, you read Kant's work here. It is an interesting way of looking at morality and something I've often questioned - without God or some kind of higher power does morality become more or less meaningless? Others may challenge that it becomes up to us then, as individuals, to be moral for the sake of being moral but that's never made a lot of sense to me. What is the purpose of morality?

Either way this is another strong philosophical text and one worth reading in order to understand more modern Western Philosophy. If philosophy interests you I would go looking for this book.