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Daily Inspiration Quote by Saint Aurelius Augustine

"Custom is second nature"

About this Quote

“Custom is second nature” reads like a serene aphorism until you remember who’s saying it: Augustine, the patron saint of inner war. This is the theologian who anatomized his own compulsions with unsettling clarity, treating the human self not as a stable identity but as a battlefield of habits. “Second nature” isn’t a cute metaphor; it’s a diagnosis. Custom doesn’t merely influence behavior, it masquerades as destiny. By the time you call something “who I am,” Augustine suspects you’re really naming what you’ve rehearsed.

The intent is double-edged. On one side, Augustine is warning that sin and error don’t need to feel evil to be corrosive; repetition smooths the conscience until vice becomes the default setting. On the other, he’s offering a strategic hope: if habit can harden the soul, it can also be trained. Discipline, liturgy, prayer, communal practice - these aren’t decorative religious add-ons in Augustine’s world. They’re counter-habits, rewiring the will where sheer “choice” keeps failing.

The subtext is almost modern in its skepticism about autonomy. Augustine doesn’t flatter the individual as a sovereign decider; he understands the self as formed by ritual, desire, and environment long before it narrates “freedom.” In late Roman North Africa, where public life was thick with inherited traditions and moral drift felt like cultural air, the line lands as a compact theory of formation: what you repeatedly do will eventually feel inevitable. The only question is who - or what - gets to write that inevitability.

Quote Details

TopicHabits
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Citation Formats

APA Style (7th ed.)
Augustine, Saint Aurelius. (2026, January 16). Custom is second nature. FixQuotes. https://fixquotes.com/quotes/custom-is-second-nature-98717/

Chicago Style
Augustine, Saint Aurelius. "Custom is second nature." FixQuotes. January 16, 2026. https://fixquotes.com/quotes/custom-is-second-nature-98717/.

MLA Style (9th ed.)
"Custom is second nature." FixQuotes, 16 Jan. 2026, https://fixquotes.com/quotes/custom-is-second-nature-98717/. Accessed 9 Mar. 2026.

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About the Author

Saint Aurelius Augustine (November 13, 354 - August 28, 430) was a Theologian from Rome.

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