The Foundation for Economic Education, Inc.
Announcing the 50th Anniversary Edition of FEE's All-Time Bestseller
THE MAINSPRING OF HUMAN PROGRESS
BY HENRY GRADY WEAVER
New Introduction by John Hood
FOR SIX THOUSAND YEARS PEOPLE DIED OF HUNGER.
WHY DON'T WE?
This is the basic question dealt with in MAINSPRING.
But the attempt to find the answer leads into a wide range of subjects, such as:
• What is the greatest of all our modern inventions?
• Who invented zero (0) and why?...