Richard Dawkins (2010, in Bryson [ed.]) is being either willfully ignorant or else very silly to insist Patrick Matthew should have 'trumpeted' his published (decades before Darwin) 1831 heretical discovery of natural selection from the rooftops as the explanation for all life on Earth because in the early to mid 19th century:
'Scientists had to establish the domain of natural knowledge as their own, and monitor the boundaries between science and religion." For that same reason, the rules of the Royal Society stated that its members should discuss nothing about God or politics, and news that was unconnected to the business of philosophy should be avoided at all costs (Gleick 2010).'
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Dawkins's Dysology is one of eight examples of multiple victimisation of Matthew's right to be considered an immortal great thinker and influencer in science (here).