With the 1950 release of Dianetics: The Modern Science of Mental Health, L. Ron Hubbard laid bare the anatomy of the human mind, revealing the single source of all man’s irrationality—the reactive mind. But there was more to discover about man—much more. The fantastic workability of Dianetics made possible the breakthroughs in Science of Survival. In the months that followed the publication of Science of Survival and its Chart of Human Evaluation, L. Ron Hubbard lectured frequently on the subject of human behavior and expanded on the use of the book and chart. Two of these lectures are now available to you for the first time since L. Ron Hubbard delivered them. The Science of Survival Package includes Hardcover, Extension Course & never before released lectures! Availability: Usually ships the next business day. $75.00 © 1996-2006 Church of Scientology International. All Rights Reserved. For Trademark Information.