slave's philosophy

Slaves enjoy something free individuals don’t: they don’t have to worry about their own lives.

The author spent awhile trying to figure out why some slaves spend seemingly all their free energy trying to make their children slaves.

It now understood: slaves enjoy the luxury of not having to manage their own life expectancy, their own property (a foreign concept to them) and non-slave friends. In a sense, they are free from managing their own lives.