The theists have maintained, as we have seen, many false beliefs that have cost the lives of innumerable men and suffering incalculable;beliefs which they themselves have subsequently recognized as false but relinquished only by the onslaught of rising secular knowledge. Surely sufficient evidence has been noted to convince a thinking being that reason is a better guide than theism. Belief is the antithesis of reason; reason is rationality;religious belief is clearly mental abnormality.