Khalil Gibran
H. van den Boogaard
Han van den Boogaard
Krishnamurti
Erich Fromm
John Gray
Eveline Brandt
Roman Krznaric
Farid Ud-D Attar
Mahesh Yogi
Alan W. Watts
Tiny Fisscher
Tshogdrug Rangdröl
Franklin Merrell-Wolff
Neil Douglas-Klotz