Why did Socrates believe that caring for the soul was a person’s most important duty?

Socrates believed that the "care of the soul"—the cultivation of virtue—was the most important human obligation because he viewed virtue as a form of knowledge essential to living a good life.12

For Socrates, the "good life" was synonymous with human flourishing, and he maintained that virtue is the necessary condition for achieving it. He held that anyone who truly understands what virtue is will inevitably act virtuously; conversely, those who act badly do so only because they are ignorant of or mistaken about the real nature of virtue.341

Because he believed that ethical virtue is the only thing that ultimately matters, he argued that a truly good person cannot be harmed by external misfortunes, such as poverty or physical injury, as long as their virtue remains intact. This conviction led to his famous assertion that "the unexamined life is not worth living," as he considered the critical destruction of false beliefs a necessary step toward acquiring the true knowledge required to care for one's soul.5641