By Cohn-Sherbok, Lavinia
By Roemmers, A.G., Brock, Oliver
By Mark LeVine
By Bracken, Harry
By Head, Tom
By Kashdan, Todd, Biswas-Diener, Robert
By Collins, Prof. David
By Holloway, Kris
By Scotting, Paul
By Pierpont, Julia
By Vernon, Mark
By Pessin, Andrew
By Rumi, Jalal al-Din, Mabey, Juliet
By Carson, Susannah, Bloom, Prof. Harold
By Hooker, Morna D.
By James, Marlon
By Cragg, Kenneth
By Gooder, Paula
By William R. Telford
By Girling, Richard
By Shepherd, Victoria
By Darling, David, Banerjee, Agnijo
By Safina, Carl
By Warner, Anthony
By Klein, Daniel, Cathcart, Thomas
By Sean Carroll
By Mikiso Hane
By Jacob Mikanowski
By FELIPE FERNANDEZ-ARMESTO