"Indubitably, magic is one of the subtlest and most difficult of the sciences and arts. There is more opportunity for errors of comprehension, judgment and practice than in any other branch of physics"
About this Quote
The subtext is a defensive maneuver against the era’s easy caricatures of the occult as parlor trick or credulity. By admitting how error-prone it is - “more opportunity for errors of comprehension, judgment and practice” - he anticipates the critic’s strongest argument (that magic doesn’t work) and flips it: failure isn’t evidence against the system; it’s evidence you did it wrong. That’s a classic move in closed epistemologies, but Crowley performs it with the rhetoric of rigorous inquiry rather than faith.
The kicker is “any other branch of physics.” Crowley is parasitizing the authority of early-20th-century science, when physics was suddenly weird enough (radioactivity, relativity, quantum tremors) to make the public newly receptive to invisible forces. He’s positioning the magician as an expert of the unseen - not a crank at the margins, but a specialist operating where measurement, perception, and will can most easily betray you.
Quote Details
| Topic | Wisdom |
|---|---|
| Source | Help us find the source |
| Cite |
Citation Formats
APA Style (7th ed.)
Crowley, Aleister. (2026, January 17). Indubitably, magic is one of the subtlest and most difficult of the sciences and arts. There is more opportunity for errors of comprehension, judgment and practice than in any other branch of physics. FixQuotes. https://fixquotes.com/quotes/indubitably-magic-is-one-of-the-subtlest-and-most-34752/
Chicago Style
Crowley, Aleister. "Indubitably, magic is one of the subtlest and most difficult of the sciences and arts. There is more opportunity for errors of comprehension, judgment and practice than in any other branch of physics." FixQuotes. January 17, 2026. https://fixquotes.com/quotes/indubitably-magic-is-one-of-the-subtlest-and-most-34752/.
MLA Style (9th ed.)
"Indubitably, magic is one of the subtlest and most difficult of the sciences and arts. There is more opportunity for errors of comprehension, judgment and practice than in any other branch of physics." FixQuotes, 17 Jan. 2026, https://fixquotes.com/quotes/indubitably-magic-is-one-of-the-subtlest-and-most-34752/. Accessed 21 Feb. 2026.







