“To practice black magic you have to violate every principle of science, decency, and intelligence. You must be obsessed with an insane idea of the importance of the petty object of your wretched and selfish desires.”
Article "The Worst Man in the World" in The Sunday Dispatch (2 July 1933); quoted in The Magical Revival (1972) by Kenneth Grant.
Context: Black magic is not a myth. It is a totally unscientific and emotional form of magic, but it does get results — of an extremely temporary nature. The recoil upon those who practice it is terrific.
It is like looking for an escape of gas with a lighted candle. As far as the search goes, there is little fear of failure!
To practice black magic you have to violate every principle of science, decency, and intelligence. You must be obsessed with an insane idea of the importance of the petty object of your wretched and selfish desires.
I have been accused of being a "black magician." No more foolish statement was ever made about me. I despise the thing to such an extent that I can hardly believe in the existence of people so debased and idiotic as to practice it.
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Aleister Crowley 142
poet, mountaineer, occultist 1875–1947Related quotes

Vol. V, par. 438
Collected Papers (1931-1958)

Source: Lectures on The Industrial Revolution in England (1884), p. 32

Spiritualism and the Christian Faith (1918)

28
Ki Sayings (2003)
Context: Until you can clearly make up your mind, you are better off not doing something. Make a habit of being decisive in your daily affairs. Some people can be heard to say, "what will I do if I get killed?!" If you die, there is nothing you can do. Whatever you have to do, do it now, while you are still living. You must practice to be able to return to essential principles at any moment.

The Awakening of Universal Motherhood (2002)
Let Eugene Terre’Blanche’s Tomb be the End of Apartheid and White Supremacism, blog post http://www.arthurkemp.com/?p=508
Quotes from other works:

Quoted as the opening passage of "BOOK ONE: The Functions of Language" in Language in Thought and Action (1949) by S. I. Hayakawa, p. 3
Words and Their Meanings (1940)
Context: A great deal of attention has been paid … to the technical languages in which men of science do their specialized thinking … But the colloquial usages of everyday speech, the literary and philosophical dialects in which men do their thinking about the problems of morals, politics, religion and psychology — these have been strangely neglected. We talk about "mere matters of words" in a tone which implies that we regard words as things beneath the notice of a serious-minded person.
This is a most unfortunate attitude. For the fact is that words play an enormous part in our lives and are therefore deserving of the closest study. The old idea that words possess magical powers is false; but its falsity is the distortion of a very important truth. Words do have a magical effect — but not in the way that magicians supposed, and not on the objects they were trying to influence. Words are magical in the way they affect the minds of those who use them. "A mere matter of words," we say contemptuously, forgetting that words have power to mould men's thinking, to canalize their feeling, to direct their willing and acting. Conduct and character are largely determined by the nature of the words we currently use to discuss ourselves and the world around us.

Source: Speech http://hansard.millbanksystems.com/commons/1848/jun/05/expulsion-of-the-british-ambassador-from in the House of Commons (5 June 1848).