Been reading this book on Gulen which compares his view with western philosophers. The first one compared was Kant and during the comparison the author said
"Kant is well aware of the emotionalism that often accompanies religion and, thus, does not view religious faith as a stable enough grounding for moral principles, which include the inherent dignity of all people. "

I thought that was quite an interesting view because whereas most people just throw out religious faith altogether he seems to be ok with it but knows it's weaknesses.
The book itself is quite interesting because it shows the similarities between people like Fethullah Gullen and John Stuart Mill, Sarte, Plato and Kant. Only read so far the Kant and Mill chapters.