"And just as he has the sense of virtue, so also he has the sense of sin. A cat may be taught not to do certain things, but if it is caught out and flees, it flees not from shame, but from fear. But the shame of a dog touches an abyss of misery as bottomless as any human emotion. He has fallen out of the state of grace, and nothing but the absolution and remission of his sin will restore him to happiness."