Study of knowledge (epistemology) is a process of reconciling a person's perception of reality. The object and subject of knowledge. The dialectical nature of knowledge process. Scientific knowledge and its unique aspects. Social consciousness and its formation. "Epistemology" is a philosophical category. Its name is derived from the Greek words gnosis - knowledge, ilm, and logos - teaching, art. The literal meaning is "teaching (art) of knowledge", "teaching (art) of consciousness"