David Le Breton
Alan W. Watts
Laura Burgers
Kris Pint
Eveline Brandt
Thomas Metzinger
Constantin Brunner
Jiddu Krishnamurti
Roman Krznaric
Marcel Messing
Han van den Boogaard
Bhante Gunaratana
John Gray
H. van den Boogaard
Mahesh Yogi
Asoka
Fernando Savater
Carolien van Welij
Thich Nhat Hanh
David Edmund Moody
Leigh Brasington
William C. Chittick
Elisabeth Dinnissen
Hans Wanningen