Indubitably, magic is one of the subtlest and most difficult of the sciences and arts. There is more opportunity for errors of comprehension, judgment and practice than in any other branch of physics.
Aleister CrowleyThe affiliation clause in our Constitution is a privilege: a courtesy to a sympathetic body. Were you not a Mason, or Co-Mason, you would have to be proposed and seconded, and then examined by savage Inquisitors, and then-probably-thrown out on the garbage heap. Well, no, it's not as bad as that; but we certainly don't want anybody who chooses to apply. Would you do it yourself, if you were on the Committee of a Club? The O.T.O. is a serious body, engaged on a work of Cosmic scope. You should question yourself: what can I contribute?
Aleister CrowleyThis serpent, SATAN, is not the enemy of Man, but He who made Gods of our race, knowing Good and Evil; He bade 'Know Thyself!' and taught Initiation.
Aleister CrowleyYou must on no account attempt to use the squares given in the Book of the Sacred Magic of Abramelin the Mage until you have succeeded in the Operation. More, unless you mean to perform it, and are prepared to go to any length to do so, you are a fool to have the book in your possession at all. Those squares are liable to get loose and do things on their own initiative; and you won't like it.
Aleister CrowleyIn this book it is spoken of the Sephiroth and the Paths; of Spirits and Conjurations; of Gods, Spheres, Planes, and many other things which may or may not exist. It is immaterial whether these exist or not. By doing certain things certain results will follow; students are most earnestly warned against attributing objective reality or philosophic validity to any of them.
Aleister Crowley