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Oikeiosis is a key concept in the philosophy of Sir Richard Sorabji, and has received significant attention from other philosophers and ethical theorists. The term "oikeiosis" is derived from the Greek word "oikeios," which means "belonging to oneself." Sorabji argues that the process of oikeiosis is essential to the development of a moral sense in individuals. This process involves individuals reflecting on their own values, interests, and priorities, and then adjusting their actions and beliefs accordingly. Through oikeiosis, individuals come to a greater understanding of themselves and their place in the world. In Sorabji's view, oikeiosis is a dynamic process that occurs throughout an individual's lifetime. As individuals encounter new experiences, they may come to realize that their values and interests have changed. Through oikeiosis, they can then realign their actions and beliefs with their newfound sense of self. This process helps individuals to maintain a consistent and coherent moral identity, even as their values and interests evolve over time.

The concept of oikeiosis has significant implications for our understanding of ethical behavior and moral decision-making. By emphasizing the importance of self-discovery and alignment with one's own values and interests, Sorabji provides a framework for individuals to make ethical decisions that are authentic and consistent with their own sense of self. This perspective challenges traditional moral theories that rely on objective moral principles and universal moral obligations, and instead recognizes the importance of personal responsibility and self-reflection in moral development. Overall, oikeiosis is a thought-provoking concept that has generated much debate and discussion in the field of philosophy. It offers a unique perspective on moral development and the role of personal responsibility in ethical behavior, and has significant implications for the way we think about ethics and moral decision-making.


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