The Mainspring of Human Progress

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The Mainspring of Human Progress, by Henry Grady Weaver, is a libertarian history book published in 1947 by Talbot Books. In 1953, the Foundation for Economic Education printed a revised edition and has done all subsequent printings. The book is an adaptation of the 1943 Rose Wilder Lane book The Discovery of Freedom, rewritten by Weaver.

The Mainspring of Human Progress

First edition
Author	Henry Grady Weaver
Publisher	Talbot Books
Publication date	1947