Even there, in the mines, underground, I may find a human heart in another convict and murderer by my side, and I may make friends with him, for even there one may live and love and suffer. One may thaw and revive a frozen heart in that convict, one may wait upon him for years, and at last bring up from the dark depths a lofty soul, a feeling, suffering creature; one may bring forth an angel, create a hero! There are so many of them, hundreds of them, and we are to blame for them.

The Brothers Karamazov (1879–1880)