The Book of the Law stands as the foundation of Thelema. In it, we are told that every man and every woman is a star. Every person is an individual. Each person is to find his True Will, the natural inclination of his soul, and accomplish that. The Law of Thelema comes from the Book of the Law and drives this essential doctrine home: "Do what thou wilt shall be the whole of the Law. Love is the law, love under will." This is not a license to do what you want, but rather a charge to find your True Will and accomplish it above all else. It is up to each individual person to interpret the Book of the Law for themselves, appealing to the writings of the prophet, but ultimately deciding for themselves as to the meaning of each verse. The only question is whether the person will be king of his own destiny, or the slave to the desires of others.
Just as we are to interpret the book for ourselves and to follow our own Wills, we are also charged to not interfere with the Wills of others. Self-determination is one of man's rights. Each star has its own orbit, each person has his own path. We must go beyond doing what others tell us is right and instead find what is right for us. Morality that restricts needlessly should be shrugged off as the shackles it has become. Each person should think for himself, reason for himself, and follow his own path. Since no two paths are the same, we have no way to instruct our brother or sister other than to encourage them to accept their own freedom, and with it, their own responsibilities for their life.
While many of the statements found in the Book of the Law and the commentaries were radical for the time in which they were delivered, they are things many agree with today. Crowley spoke of gender equality, the acceptance of homosexuality and bisexuality, the bondage to old religions which attempted to stuff everyone into a one-size-fits-all path, etc. As the Aeon has progressed, these have become ideals many of us espouse.
The religion of wicca was devised by a member of Crowley's OTO, Gerald Gardner. He adapted the Law of Thelema to his attempt to bring back paganism and it became the wiccan Crede "An it harm none, do what ye will". Due to this first attempt at the reconstruction of paganism, we have seen an increasing explosion of neo-pagan religions, all emphasizing the individual's right to believe as he or she will. Even many within the formerly intolerant old aeon religions are now tolerant of the beliefs of others.
Crowley proclaimed the start of a new age. We are fortunate enough to witness it's progression: the age of the individual, the Aeon of Horus. Even though he suffered through an addiction to heroin as well as libel in the press, he tirelessly worked to promulgate the law. We are the benefactors of his work. We are the children of the crowned and conquering child, Horus.
Books You Might Enjoy:
Sekhet Sophia - The Alexandrian Book Of Shadows
Tuesday Lobsang Rampa - Chapters Of Life
Amber K - The Basics Of Magick
James Eschelman - Invocation Of Horus
Anonymous - Thelema A New Spiritual Tradition For A New Age