Preached at London's centres for free speech, Tower Hill and Speakers' Corner; he was often referred to as "Dr Soapbox"
Radicalised by witnessing inner-city poverty
Became an active Labour Party member
Offended many Conservatives by arguing that Margaret Thatcher’s policies were inherently incompatible with Christianity. His preaching concerned the political implications of the Christian gospel
Active in the Campaign for Nuclear Disarmament and was president of the Fellowship of Reconciliation in England for many years
