by Napoleon Hill
by Peter Thiel
by Norman Vincent Peale
by Alvin Toffler
by David Schwartz
by Dale Carnegi
by Shiv Khera
by John Naisbitt
by Mark manson
by Rod Judkins
by Peter Guber
by Thomas J. Watson JR
by Jay Elliot
by Dale Carnegie
by DR spencer Johnson
by Robin Sharma
by Kenichi Ohmae
by John Kenneth Galbraith