Sigmund Freud 

Richard L. Gregory

Kay Redfield Jamison

Po Bronson 

Guy Claxton 

Joel Gold

C.G. Jung

Lisa Miller

Chip Heath

Julian Rothenstein

Kaya

DK

Robert Greene

Walt Odets

Douglas Holwerda

Roy F. Baumeister

Joel Levy

Bell Hooks 

Rudolf Hogger

Douglas Holwerda

Martin E.P. Seligman

Annie Ridout

Ethan Kross

Robert A Johnson