philosophy
n. the intellectual discipline that uses careful reasoned argument to elucidate fundamental questions, notably those concerning the nature of reality (metaphysics), the nature of knowledge (epistemology), and the nature of moral judgments (ethics). As such, it provides an intellectual foundation for many other disciplines, including psychology. Psychology as a scientific discipline has its roots in the epistemological preoccupations of 18th- and 19th-century philosophy and continues to be influenced by philosophical ideas. See philosophical psychology. —philosopher
n.
—philosophical
adj.