By Dr Alexander Moseley 

By James Tooley 

By Richard Kohler 

By Jurgen Oelkers 

By David R. Olson 

By Professor James Arthur 

By Dr Roland Meighan 

By Ren van der Veer 

By Professor Kathy Hall 

By Dr Marion O'Donnell 

By Susan Laird 

By Dr Michael James Grenfell 

By Robin Barrow 

By Professor Robert A. Davis 

By Professor Heiner Ullrich 

By Ryan N. S. Topping 

By Professor Stefaan E. Cuypers