Aleister Crowley

Must not understanding lie open unto wisdom as the pyramids lie open to the stars? (6:2).

Light, Life and Love are like three glow-worms at thy feet: the whole universe of stars, the dewdrops on the grass whereon thou walkest!

Indubitably, Magick is one of the subtlest and most difficult of the sciences and arts. There is more opportunity for errors of comprehension, judgement and practice than in any other branch of physics.