If you treat prisoners well, they will be less angry, less inclined to violence inside prison, less likely to provoke violent actions by guards, less likely to have reason to file brutality lawsuits that cost taxpayers a bundle and waste administrators' time. And most important, well-treated prisoners will be less likely to leave prison angrier, more vicious and more inclined to criminal behavior than when they went in.
It isn't true that convicts live like animals: animals have more room to move around.
I never saw a man who looked With such a wistful eye Upon that little tent of blue Which prisoners call the sky.
One of the many lessons that one learns in prison is, that things are what they are and will be what they will be.
The perfection of a thing consists in its essence; there are perfect criminals, as there are men of perfect probity.