The Stoic concept of the "indifferent" helped to distinguish between what is within our control and what is not from "summary" of Stoicism by John Sellars
The Stoics believed that there are certain things in life that are within our control and others that are not. They referred to the latter as "indifferents," which included things like wealth, health, reputation, and even life itself. These externals were considered indifferent because they did not have any bearing on our moral character or virtue. By recognizing that these externals were outside of our control, the Stoics believed that we could free ourselves from the anxiety and distress that often comes with trying to manipulate or change them. Instead, they encouraged focusing on what is within our control, namely our thoughts, actions, and responses to external events. This distinction between what is within our control and what is not helped the Stoics to cultivate a sense of inner peace and tranquility. By accepting the things that are outside of our control and focusing on what is within our power, they believed that individuals could lead more virtuous and fulfilling lives. The Stoics did not advocate for a complete detachment from external events or indifference to the world around us. Rather, they suggested that we should engage with the world while maintaining a sense of detachment from the outcomes. This allowed them to navigate the ups and downs of life with equanimity and grace.- The concept of the "indifferent" in Stoicism served as a practical tool for individuals to navigate the complexities of life, focusing on what truly matters and letting go of what is beyond their control. It provided a framework for living a more virtuous and ethical life, grounded in reason and self-mastery.