Aleister Crowley was not a author, or someone to be quoted. He was and occultist and cult leader, generally considered one of the most evil men in history.
He basically believed he was the Anti-Christ, and those who know of his life tend to agree.
Also, since his main religious text was supposedly dictated by an angel, and the rest were a hodgepodge of other religions, warped to fit his ends, very little of what he wrote was original.