"To know, to do and to keep silent."
— The man himself
"Crowley had the first two down pat."
— Alan Moore, on the above
"Do what thou wilt shall be the whole of the Law."
— Aleister Crowley in The Book Of The Law, supposedly the dictated words of the goddess Nuit.
"In 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 in Liber O