One of the ill effects of cruelty is that it makes the by-standers cruel.
—Sir Thomas Buxton, 1st Baronet (1786–1845) English Politician, Social Reformer
Man’s inhumanity to man, makes countless thousands mourn.
—Robert Burns (1759–96) Scottish Poet, Songwriter
A fly may sting a stately horse and make him wince; but one is but an insect, and the other is a horse still.
—Samuel Johnson (1709–84) British Essayist