He Quotes (page 71)
He said cruelty was the devil's own trade-mark, and if we saw any one who took pleasure in cruelty we might know who he belonged to, for the devil was a murderer from the beginning, and a tormentor to the end. On the other hand, where we saw people who loved their neighbors, and were kind to man and beast, we might know that was God's mark.
Anna Sewell