Mind's Eye Good and bad

Why do so many of us remember negative feelings easier than positive ones. Pain over pleasure. Bad news over good news. Why does "bad" overshadow "good", immorality over morality, despair over hope, pessimism over optimism. Why does hate appear to be more powerful than love? Why is greed louder than generosity. Why is destruction of war so much faster than the building power of peace. Why can one little lie destroy a lifetime of trust. Why are lies more influential than truth. It all seems so one sided. Why is that?

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