"Human nature is full of riddles; . . . one of those riddles is: how is it that people who have been crushed by the sheer weight of slavery and cast to the bottom of the pit can nevertheless find strength in themselves to rise up and free themselves first in spirit and then in body while those who soar unhampered over the peaks of freedom suddenly lose the taste of freedom, lose the will to defend it, and, hopelessly confused and lost, almost begin to crave slavery?'"