Philosophy is universally applicable and interdisciplinary by nature, as the oldest and most basic academic discipline. Through the study led by classical and contemporary philosophical texts, thinkers and traditions, the lovers of philosophy sharpen their critical and analytical thinking abilities; deepen their capacities to reason about ethical principles and moral problems; improve communication skills; and cultivate openness to new ideas. Philosophy is not just an academic discipline, but first of all, it is a perspective of life. Philosophy stands very close to us, in our daily lives, in any questions or dilemmas that we face each day. Here, we tend to make an introduction of four fields of philosophy and some of the questions pertaini...