We manage to swallow flesh only because we do not think of the cruel and sinful thing that we do. There are many crimes which are the creation of man himself, the wrongfulness of which is put down to their divergence from habit, custom, or tradition. But cruelty is not of these. It is a fundamental sin, and admits of no argument or nice distinctions. If only we do not allow our heart to grow callous, its protest against cruelty is always clearly heard; and yet we go on perpetrating cruelties easily, merrily, all of us – in fact, anyone who does not join in is dubbed a crank.
Rabindranath Tagore
The awakenings of remorse,
The awakenings of remorse, virtuous shame and indignation, the glow of moral approbation if they do not lead to action, grow less and less vivid every time they occur, till at length the mind grows absolutely callous. Anna Letitia Barbauld