Han van den Boogaard
Khalil Gibran
Tiny Fisscher
Roman Krznaric
H. van den Boogaard
John Gray
Krishnamurti
Erich Fromm
Mahesh Yogi
Alan W. Watts
Eveline Brandt
Elisabeth Dinnissen
Swami Dayananda
Franklin Merrell-Wolff
Neil Douglas-Klotz