Philosophers live and encourage others to live according to the rules of practical wisdom. Aristotle, Immanuel Kant, and Emmanuel Levinas were three philosophers who sorted out various ethical approaches. They investigated complex human actions and theorized what is the ethical thing to do. For instance, Aristotle contemplated the aim of human life, Kant observed duty and obligation from respect for the law, and Levinas examined one's responsibility to the Other. These unique points of view offer different answers regarding the search for the good. In addition to their differences, these philosophers are bound together by similar ideas. For example, each of the philosophers believed in optimism-- they thought that all humans are naturally ethical. In addition, each of the philosophers believed in using reason to be ethical. They emphasized the concept of living well and acting well by using virtuous habits and good character to reach the "good".…