Only free people have an incentive to be virtuous. Only people who bear the consequences of their own acts will care about those consequences and try to learn from their mistakes.

Quote by Harry Browne

William Morrow & Co. ISBN 978-0-07-008483-4.
You Can Profit from a Monetary Crisis.

He is the author of 12 books that in total have sold more than 2 million copies. S. elections of 1996 and 2000.