QUOTE : Imagine a society’s discovering a vaccine against a deadly disease that has been ravaging its people and continues to ravage people in neighboring societies, where the cause of the disease is incorrectly attributed to improper diet. What would be the judgment on such a society if it withheld its vaccine on the grounds that it would be ethnocentric to try to instruct members of another culture that their medical ideas are incorrect, and to induce them to adopt the effective treatment? If one accepts that one has the good fortune to be in possession of the true religion and thereby has access to the most valuable possible rewards, is one not similarly obligated to spread this blessing to those less fortunate?