David L. Felten Professions : Neuroscientist Browse All Authors Famous Quotes by David L. Felten The world's deadliest poison, can be your own thoughts. David L. Felten poison motivational world Similar Authors Arnold J. Mandell neuroscientist Andrew B. Newberg neuroscientist David Eagleman neuroscientist Daniel Levitin neuroscientist Candace Pert neuroscientist Gregory Berns neuroscientist All Authors