Western philosophy is the philosophical thought and work of the Western world. Historically, the term refers to the philosophical thinking of Western culture, beginning with Hellenic (i.e. Greek) philosophy, and eventually covering a large area of the globe. The word philosophy itself originated from the Hellenic: philosophia (φιλοσοφία), literally, "the love of wisdom" (φιλεῖν philein, "to love" and σοφία sophia, "wisdom").
The scope of philosophy in the ancient understanding, and the writings of (at least some of) the ancient philosophers, were all intellectual endeavors. This included the problems of philosophy as they are understood today; but it also included many other disciplines, such as pure mathematics and natural sciences such as physics, astrology, and biology (Aristotle, for example, wrote on all of these topics.)
Western philosophers have often been divided into some major branches, or schools, based either on the questions typically addressed by people working in different parts of the field, or notions of ideological undercurrents. In the ancient world, the most influential division of the subject was the Stoics' division of philosophy into Logic, Ethics, and Physics (conceived as the study of the nature of the world, and including both natural science and metaphysics). In contemporary philosophy, specialties within the field are more commonly divided into metaphysics, epistemology, ethics and aesthetics (the latter two of which together comprise axiology). Logic is sometimes included as a main branch of philosophy, sometimes as a separate science philosophers happen to work on, and sometimes just as a characteristically philosophical method applying to all branches of philosophy.