By Bobby Duffy
By David Berreby
By Paul R. Ehrlich, Stanford University, Robert E. Ornstein
By Anthony Walker (Msc PhD Frics Fhkis McIob Emeritus Professor University of Hong Kong), Dr John G Gunderson, M.D., MD (McLean Hospital)
By Annalisa Berta, James L. Sumich
By Roger Pielke, Simon Kuper
By John McGowan, Frankie McGowan
By Christiane Sanderson
By Nollaig Frost
By Laura Dodsworth, Patrick Fagan
By Anneli Rufus
By Judith Herman
By Ian Eyres
By Malcolm Gladwell
By Michael Billig (Loughborough University)
By Barry Schwartz
By Douglas Rushkoff
By Nettle, Daniel
By Alain Pekar Lempereur, Pekar Lempereur, Alain, Salzer, Jacques, Colson, Aurélien
By Rachel Botsman
By Steven Pinker
By Brian Parkinson, Agneta H. Fischer, Antony S.R. Manstead
By Sally Planalp (University of Montana)
By Erich Fromm
By Martha Augoustinos, Iain Walker
By Charles Duhigg
By Michael Argyle
By James Davies
By Monica McGoldrick, Kenneth V. Hardy
By Philip Zimbardo, Nikita D. Coulombe