This part of his essay addresses your thought: ...one of the universal tactics of heretic hunters, now as in the past, is to accuse those who disapprove of the

This part of his essay addresses your thought: ...one of the universal tactics of heretic hunters, now as in the past, is to accuse those who disapprove of the way in which they suppress ideas of being heretics themselves. Remember, these are religious fanatics not scientific objectivists.