Arranged in three short sections, the work examines the moral and practical qualities required for service, the choice of appropriate accompaniment, and the strategic question of where opponents are located. It praises inward bravery grounded in equilibrium and discretion rather than theatrical deeds, employing physical metaphors to advocate balanced, spherical strength and the golden mean. Cowardice is portrayed as imbalance and reliance on external props, whereas true fortitude serves as inner armor that turns adversity to advantage. The text emphasizes self-reliance, steady virtue, and the transformative effects of a rightly disposed character.