Which philosopher declared that forced bodily labor does not harm the body but teaching through force affects the soul?

The assertion that forced bodily labor does not harm the body while teaching through force impacts the soul is closely associated with Socratic thought as presented by Plato, particularly in works like "The Republic." Socrates emphasizes the importance of the soul and its development through knowledge and education, arguing that true harm comes not from physical actions but from the corruption of understanding and virtue. In contrast to physical labor, which may be forceful but does not impair the body itself, the coercion involved in teaching can lead to a misunderstanding of truth, virtue, and wisdom, thus damaging the soul. This distinction highlights the philosophical focus on the immaterial aspects of human existence, such as the intellect and moral character, as being of greater significance than merely physical experiences.

Socrates' philosophical views, as transcribed by Plato, reflect a deep concern for the moral and intellectual integrity of individuals, suggesting that true education should be a voluntary, enlightening process rather than one inflicted upon the student. This underscores the value placed on the cultivation of the mind and spirit in classical philosophy, a theme central to Plato's educational philosophies.