This book by Alain offers an accessible yet profound journey through the evolution of Western philosophy. It meticulously traces the intellectual lineage from the foundational insights of Socrates, through the rigorous thought of Plato and Aristotle, to the revolutionary ideas of Immanuel Kant. Readers will gain a clear understanding of the core concepts, major debates, and lasting legacies of these monumental figures. Alain's unique perspective makes complex philosophical ideas comprehensible, serving as an ideal gateway for both beginners and those seeking to revisit the foundations of philosophical thought. It highlights the progression of ideas that have shaped human understanding for centuries.