The human spirit

I recently dug up a book whose pages had already turned yellow, and started reading it a few days ago. Liked this excerpt:

"But this was the sense, not forgotten either then or later: that precisely because the Lager was a great machine to reduce us to beasts, we must not become beasts; that even in this place one can survive, and therefore one must want to survive, to tell the story, to bear witness; and that to survive we must force ourselves to save at least the skeleton, the scaffolding, the form of civilisation. We are slaves, deprived of every right, exposed to every insult, condemned to certain death, but we still possess one power, and we must defend it with all our strength for it is the last - the power to refuse our consent. So we must certainly wash our faces without soap in dirty water and dry ourselves on our jackets. We must polish our shoes, not because the regulation states it, but for dignity and propriety. We must walk erect, without dragging our feet, not in homage to Prussian discipline but to remain alive, and not to begin to die."