Prof. Simon Robinson is an Anglican priest, professor of spirituality and ethics in Leeds. He teaches mostly in business schools about management, leadership and qualities or even virtues like sincerity, responsibility, transparancy, and fight against corruption. He was in Amsterdam at the invitation of Dutch Gülen people to present his new book:The Spirituality of Responsibility: Fethullah Gülen and Islamic Thought. At some moment I had the impression that he is close the the Indonesian/Dutch Jesuit priest Paul de Blot de Chauvigny who also teaches ´business spirituality´ at a business school (in his case Nyeveldt Unjiversity).
Robinson's key concept are Responsibility, integrity, truthfullness (when seeking in the Aristotelian code of ethicsal conduct for the right virtue). He is more in dialogue with Aristotle, and Ricoeur than with Gülen, but applies his theoretical tools also to an interpretation of this Muslim scholar.
Gülen had summoned his followers to vote in favour for the Turkish Constitutional Referendum of 12 September 2010 (exactly 30 years after the coup of 1980 which resulted in a very undemocratic constitution). This support was given notwithstanding Gülen's disapproval of the way (other) Turkish humanitarian organizations had tried to bring aid to Gaza. Thieir six ships with more than 600 people supporting the action was attacked by the Gaza flotilla raid on 31 May 2010, causing nine people dead. The dispproval by Gülen of this Turkish action was, that it was against the strategy and rulings of the Israeli government. Robinson's conclusion: Gülen does not want to shock any government also not the present Israeli government.
Although Robinson is already since about ten years an active person in contacts with Gülen people, attends conferences, and now writes a book on him, I found it not a strong thesis. I still see the Gezi Park protests rather as the beginning of the estrangement between the two figures.
We had a major discussant from Baltimore, Prof. William (Pim) Valkenberg who has published 'his book' on Gülen in 2015: Renewing Islam by Service, it has more precise historical and theological methodology.