Like many people, most Libertarians feel empathy and sympathy for less fortunate people. But they know you can't have perfection in a world of limited resources.

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.