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Daily Inspiration Quote by Muriel Spark

"If you're going to do a thing, you should do it thoroughly. If you're going to be a Christian, you may as well be a Catholic"

About this Quote

Perfectionism, delivered with a dry Scottish blade. Spark’s line isn’t really a recruitment poster for Rome so much as a critique of half-faith, half-commitment, and the modern temptation to treat identity as a lifestyle accessory. The first sentence is a seemingly plain moral maxim: do it properly or don’t bother. The second snaps it into something sharper: if you’re going to claim Christianity, go for the version that is least compatible with vagueness.

Spark is needling Protestant understatement and liberal, pick-and-mix religiosity by pointing to Catholicism as the maximalist choice: dense doctrine, elaborate ritual, centralized authority, a machine built to eliminate private improvisation. That’s the subtext: thoroughness here means surrendering to a system big enough to constrain you. Catholicism becomes shorthand for commitment with consequences, the opposite of a faith you can edit for comfort.

Context matters because Spark isn’t an armchair provocateur. She converted to Catholicism in the 1950s, and her fiction is full of moral trapdoors, religious seriousness, and characters who find that the “nice” option is often the least honest. The wit lies in how the line flatters and mocks at once: it praises rigor while hinting that people who demand “thoroughness” may be drawn to institutions that do their thinking for them. Spark makes conviction look both bracing and faintly dangerous, which is exactly why the aphorism lands.

Quote Details

TopicFaith
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Citation Formats

APA Style (7th ed.)
Spark, Muriel. (2026, January 15). If you're going to do a thing, you should do it thoroughly. If you're going to be a Christian, you may as well be a Catholic. FixQuotes. https://fixquotes.com/quotes/if-youre-going-to-do-a-thing-you-should-do-it-120399/

Chicago Style
Spark, Muriel. "If you're going to do a thing, you should do it thoroughly. If you're going to be a Christian, you may as well be a Catholic." FixQuotes. January 15, 2026. https://fixquotes.com/quotes/if-youre-going-to-do-a-thing-you-should-do-it-120399/.

MLA Style (9th ed.)
"If you're going to do a thing, you should do it thoroughly. If you're going to be a Christian, you may as well be a Catholic." FixQuotes, 15 Jan. 2026, https://fixquotes.com/quotes/if-youre-going-to-do-a-thing-you-should-do-it-120399/. Accessed 13 Feb. 2026.

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Muriel Spark on thoroughness and commitment
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About the Author

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Muriel Spark (February 1, 1918 - April 13, 2006) was a Novelist from England.

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