Do what thou wilt shall be the whole of the Law.
I am pleased to announce that we have just published another free digital book (or, rather, monograph), The Ethics of Thelema. This is a digital edition of the monograph available in the past from C.O.T. It combines four important essays that we believe represent a solid, comprehensible foundation for Thelemic philosophy, and for living one's life in healthy alignment therewith.
You can get download digital monograph from: http://www.thelema.org/publications