mankind is resilient: the ...

mankind is resilient: the atrocities that horrified us a week ago become acceptable tomorrow.
 Joseph Heller

Quotes from the same author

From men motivated by moral certitude, history teaches, no lasting good ever comes.
 Joseph Heller
Gold was not sure of many things, but he was definite about one: for every successful person he knew, he could name at least two others of greater ability, better, and higher intelligence who, by comparison, had failed.
 Joseph Heller
It was miraculous. It was almost no trick at all, he saw, to turn vice into virtue and slander into truth, impotence into abstinence, arrogance into humility, plunder into philanthropy, thievery into honor, blasphemy into wisdom, brutality into patriotism, and sadism into justice. Anybody could do it; it required no brains at all. It merely required no character.
 Joseph Heller
To Yossarian, the idea of pennants as prizes was absurd. No money went with them, no class privileges. Like Olympic medals and tennis trophies, all they signified was that the owner had done something of no benefit to anyone more capably than everyone else.
 Joseph Heller
Destiny is a good thing to accept when it's going your way. When it isn't, don't call it destiny; call it injustice, treachery, or simple bad luck.
 Joseph Heller