We will have to repent in this generation not merely for the vitriolic words and actions of the bad people, but for the appalling silence of the good people.
— Martin Luther King, Jr.

Make it a rule in life never to regret and never look back. Regret is an appalling waste of energy; you can't build on it; it is good only for wallowing in.
Katherine Mansfield appall quote

Why are people more appalled at what they term an unnatural form of dying than by an unnatural form of living?
— Norman Cousins

You cannot conceive, nor can I, of the appalling strangeness of the mercy of God.
— Graham Greene

It has become appallingly obvious that our technology has exceeded our humanity.
— appall quotation by Albert Einstein