One never imbibes it passively. You have to think through every morsel to make it yours. To think metaphysically is to think on the most basic or fundamental problems of existence. The philosophy of mind concerns itself with cognition, affection, and volition. Perplexing philosophical problems that arise out of reflection upon the nature of knowledge constitute the subject matter of epistemology.
Political philosophy attends to political life.
It shares with the philosophy of law an interest in the nature and scope of justice and with social philosophy an interest in social relations. Ethics or moral philosophy involves thinking about moral dilemmas, moral character, and moral judgments. Aesthetics or the philosophy of art probes the work of art and the aesthetic experience. The philosophy of religion inquires into the claims of religion.