In My Bondage and My Freedom by Frederick Douglass why do the Aulds watch Douglass carefully?

In "My Bondage and My Freedom," the Aulds watch Frederick Douglass carefully because they are aware of his intelligence and potential for resistance. They fear that he might learn to read and write, which could empower him and lead to rebellion against slavery. Their surveillance reflects the broader anxiety slaveholders had about the education of enslaved people, as knowledge was seen as a tool for liberation. This vigilance underscores the oppressive nature of the institution of slavery and the lengths to which slaveholders would go to maintain control.