Reason should require no defence and yet it is evident that irrationalism is always with us. The RA is one of reason's most important advocates. RA member Professor Raymond Tallis
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AC Grayling is one of Britain's best-known humanist philosophers. He is the author of many books, including What is Good? (2003), Against All Gods (2007) and The Good Book (2011). He is also Master of the New College of the Humanities.