Here is Mrs. Miniver musing about the atrocities against the Jews as World War II rages across the channel:
However long the horror continued, once must not get to the stage of refusing to think about it. To shrink from direct pain was bad enough, but to shrink from vicarious pain was the ultimate cowardice. And whereas to conceal direct pain was a virtue, to conceal vicarious pain was a sin. Only by feeling it to the utmost, and by expressing it, could the rest of the world help to heal the injury which had caused it. Money, food, clothing, shelter—people could give all these and still it would not be enough: it would not absolve them from the duty of paying in full, also, the imponderable tribute of grief.