The Sun revolves around the Earth. The Earth is flat.
Tomatoes are poisonous to humans.
They are all known to be false. At one time, however, these beliefs were universally accepted truths. When the real truth emerged and these old beliefs had to die, many people reacted with resistance. According to Elizabeth Kubler-Ross, author of On Death and Dying , there are four stages to coming to terms with a death. Psychiatrist Neal Barnard has stated that these stages apply even to the death of an idea .