Unlock the foundations of knowledge and being with a comprehensive metaphysical system. This edition presents a structured, step‑by‑step approach to how we know what we know, what knowledge can be, and how the mind relates to reality. Clear, precise arguments guide you through epistemology, ontology, and the role of sense and intellect in cognition. This work treats philosophy as a disciplined inquiry into the starting points of thought. It frames a method that aims to separate true from false while showing how knowledge is built from both experience and reason. The result is a rigorous, influential map of metaphysical inquiry that remains relevant to readers curious about the nature of knowing, being, and the conditions that bind them. Foundations: the primary law of knowledge and the inseparability of subject and object Core topics: epistemology, agnoiology, ontology, and the critique of common assumptions Method: a systematic, argumentative approach that contrasts truth and error Orientation: the history of philosophy viewed through this decisive framework Ideal for readers of philosophy, cognitive science, and anyone seeking a cohesive account of how knowledge and being interrelate across theory and experience.