Alessandro Amadori(1)
Kenneth Baker(1)
Jan Chozen Bays(1)
Stephen Birchall(1)
Phil Capone(1)
Aldo Cazzullo(1)
C. Cicuzza(1)
Thomas Cleary(1)
Stephen R. Covey(1)
Gary Coxe(1)
Jeff Davidson(1)
Jinny S. Ditzler(1)
Michael Ende(1)
Mahatma Gandhi(1)
Giulio Cesare Giacobbe(1)
M.K. Gupta(3)
Vito Mancuso(1)
Phillip C. McGraw(1)
Walpola Rahula(1)
Rikky Rooksby(3)
Robin Sharma(1)
Gail Sheehy(1)
Russ Shipton(2)
Jerry Snyder(3)
Gary Turner(1)