This quote from Epictetus emphasizes the strength of a virtuous individual who engages only in battles that align with their values and strengths. Such a person is not swayed by external pressures or desires for possessions. They remain true to themselves and are not easily manipulated into fighting for things they do not truly want. This perspective illustrates the power of self-awareness and reasoned choice in determining one's path.

The invincibility of a good person lies in their commitment to their principles and the choices they make. By focusing on what truly matters to them, they remain invulnerable to attempts to impose external desires or control over them. The essence of their strength is rooted in their ability to discern the right contests to enter, granting them a unique advantage in life's challenges.