He who is present at a wrongdoing and does not lift a hand to prevent it, is as guilty as the wrongdoers. – American Indian Proverb

There is no calamity greater than lavish desires. There is no greater guilt than discontentment. And there is not greater disaster than greed. – Lao-Tzu

The very presence of guilt, let alone its tenacity, implies imbalance: Something, we suspect, is getting more of our energy than warrants, at the expense of something else, we suspect, that deserves more of our energy than we – Melinda M. Marshall

Punishment closely follows guilt as its companion. – Horace