But the concepts we employ in ordinary life are often vague and ambiguous. One activity of philosophy is to pass from those obvious, vague and ambiguous concepts whose meaning we are unsure of, to something definite, clear and precise which upon reflection and analysis we find to underlie them. Philosophy seeks to answer that question. There are many different areas of philosophy which can to some extent be delineated through a consideration of the concepts they analyze and questions they attempt to answer. Ethics is concerned with what we ought to do and what is good for us.
Logic studies the differences between valid and invalid reasoning.
It provides techniques for developing proofs, and critically analyzing various points of view. Although this question might sound paradoxical, it actually has a surprising answer. Philosophy of Mind theorizes about the nature of mental phenomena. Philosophers typically have many intellectual interests, and the study of philosophy is exciting because it reaches in many directions, and leads to a broad education. Philosophy is not only concerned with the analysis of concepts, but also with the justification of beliefs.