The main problem for the average reader -- particularly of The Great Beast -- is that Crowley seems such an intolerable show-off that it is hard to b… - Colin Wilson

The evolutionary urge drives man to seek for intenser forms of fulfillment, since his basic urge is for more life, more consciousness, and this contentment has an air of stagnation that the healthy mind rejects. (This recognition lies at the centre of my own 'outsider theory': that there are human beings to whom comfort means nothing, but whose happiness consists in following an obscure inner-drive, an 'appetite for reality'.)

The chief impression left by a study of Crowley's life and works is that he wasted an immense amount of time and energy trying to shock everyone he came into contact with, and his dislike of orthodoxy turned him into an unconsciously comic figure, like Don Quixote.

What is so remarkable about Crowley the 'magician' is that he remains Crowley the scientist, and always applies the same probing intellectual curiosity to every field he surveys. This is ultimately the most impressive quality about his mind, and the one that might -- if he had concentrated on developing it to the full -- have brought him the fame that he craved. Crowley's tragedy was that he never concentrated long enough to develop anything to the full.