We study the origin of philosophy and its development to become a science - or knowledge-nature itself, with its own method and conceptual rigor. It examines what constitutes philosophy as such, distinguishes and makes autonomous science in relation to other types of knowledge. Here the author examines the relationship between philosophy and special sciences and theology. The issue is of particular interest because of the enormous thrust and the discoveries made by the method of natural science. The author offers a balanced solution to scientism, which is an attempt to impose a particular method in part in the study of all reality. Stated the purpose of the logic and purpose of this science, the author analyzes the elements of the utterance, to devote to the study center pages of argument, the forms of syllogism and universal laws. The question is how to adhere to the principle that causes only knowledge worth the name of science. This logic, as expounded Verneaux, remains in the line of Aristotle's Organon. In this book, of great probity and solvency intellectuals, we are shown the expertise of highly experienced teacher and author. But above all, their property to teach thinking. In this sense, one should not hesitate to rate this volume safe guide for those who want to start in the study of philosophy and their teachers.