Uomo, non ti vantare di superiorità nei confronti degli animali: essi sono senza peccato, mentre tu, con tutta la tua grandezza, insozzi la terra con la tua comparsa su di essa e lasci la tua orma putrida dietro di te

Let someone who was not from among the convicts try reproaching a prisoner for his crime and abusing him (though it's not in the Russian spirit to reproach a criminal)--there would be no end of cursing.

Man is a creature who gets used to everything, and that, I think, is the best definition of him.