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Who really said it

Integrity is doing the right thing, even when no one is watching

Not C.S. Lewis — a modern paraphrase Charles Marshall American author, motivational speaker & comedian · nearest documented source
Disputed Rights unconfirmed

C.S. Lewis never wrote this line — it appears in none of his books, and both the C.S. Lewis Foundation and Christianity Today list it as misattributed. The closest documented wording is in Charles Marshall’s 2003 book Shattering the Glass Slipper, but the exact popular phrasing is an anonymous modern paraphrase of an older “character is what you do when no one is watching” maxim, so no single originator can be pinned to it.

Last verified 8 Jul 2026 · how we verify · spot an error?

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Disputed credit — copy with the correction

“Integrity is doing the right thing, even when no one is watching” Nearest documented source: Charles W. Marshall, Shattering the Glass Slipper (2003). Popularly misattributed to C.S. Lewis, who never wrote it.

The slide-ready mistake: crediting this to C.S. Lewis. Use the credit shown above instead.

Can you use it?

We couldn’t verify where this wording comes from, so there’s no rights status to give. Safe to present as an unverified or anonymous line — just don’t assert a specific author or source.

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In context

Evoking the world of Charles Marshall — American author, motivational speaker & comedian. Theme: "Integrity is doing the right thing, even when no one is watching". Atmospheric and restrained, cinematic directional light, a muted period-appropriate palette, fine grain and texture. Compose with generous empty space for the quote and a small credit line. No lettering in the image itself.

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Provenance

Where the line actually comes from

Popularly credited to
C.S. Lewis (often to Mere Christianity, 1952) — unsupported
Nearest documented source
Shattering the Glass Slipper
Author & date
Charles W. Marshall, 2003
Verdict
Misattributed — modern paraphrase, no single originator

Integrity is doing the right thing when you don’t have to — when no one else is looking or will ever know — when there will be no congratulations or recognition for having done so.

The nearest documented wording, from Charles Marshall’s Shattering the Glass Slipper (2003), as quoted by Christianity Today. Marshall presents it as his own words, not as a Lewis quotation — and it differs from the smoothed-out popular version.

C.S. Lewis Foundation: Quotes Misattributed to C.S. Lewis

How we verified this

  • The C.S. Lewis Foundation lists the line among quotes misattributed to Lewis, calling it a paraphrase of a Charles Marshall quote in Shattering the Glass Slipper.
  • Christianity Today’s survey of the top misquoted Lewis lines confirms the phrase is absent from his work and traces the closest wording to Marshall’s 2003 book.
  • Teacher Sam Young’s multi-year investigation searched Mere Christianity and found no such sentence, and could locate no primary Lewis source.
  • A related older maxim — “Character is doing what’s right when nobody’s looking” — is documented for J.C. Watts in the 1990s per Young’s follow-up, showing the idea predates any “integrity” wording.

The exact popular wording is an anonymous modern paraphrase that cannot be tied to a single dated first publication, so no copyright status is asserted. The nearest documented phrasing — Charles Marshall’s Shattering the Glass Slipper (2003) — would itself be in-copyright to Marshall/his publisher, but it is a different sentence, not the line as usually quoted.

Fact-check

How C.S. Lewis got the credit

This is one of the most reshared lines pinned on C.S. Lewis — but it is a classic “magnet-name” misattribution: a tidy, quotable maxim attached to a beloved author who never wrote it.

C.S. Lewis Misattributed

The line appears in none of Lewis’s books, and is frequently but wrongly cited to Mere Christianity (1952). The C.S. Lewis Foundation and Christianity Today both list it as misattributed.

Charles Marshall Closest source

His 2003 Shattering the Glass Slipper contains “Integrity is doing the right thing when you don’t have to…” in his own voice — but this is a fuller, different sentence, so it is the closest documented match, not proof he coined the popular one-liner.

J.C. Watts (and others) Related

The near-identical “Character is doing what’s right when nobody’s looking” is documented for J.C. Watts in the 1990s per Sam Young’s research, showing the sentiment circulated widely before any “integrity” version.

The honest answer: C.S. Lewis did not write this. The nearest documented wording is Charles Marshall’s 2003 book, and the exact popular phrasing is an anonymous modern paraphrase of a much older maxim.

Context

Why the attribution sticks

Lewis is one of the internet’s biggest magnets for feel-good, morally tidy lines — his real reputation for writing plainly about virtue makes almost any aphorism about character sound like something he could have said. Once a quote-card pairs the sentence with his name, it self-replicates.

In reality the “do right when unobserved” idea is an old and widely shared one, expressed by many writers about both character and integrity. The specific “Integrity is doing the right thing, even when no one is watching” wording is a smoothed, anonymous version whose earliest exact appearance no researcher has pinned down.

Lewis never wrote it — it just sounds like he might have.

Explore

Filed under

More provenance-checked quotes on the same theme, each with its reuse status.

Character Truth

Go further

Dig deeper

Trusted places to keep pulling the thread — primary archives, fact-checks, and scholarship. We show how we used each one before you leave.

Quotes Misattributed to C.S. Lewiscslewis.org

The C.S. Lewis Foundation’s own list flagging this line as a paraphrase of Charles Marshall.
Top 10 Lines Falsely Attributed to C.S. Lewischristianitytoday.com

Fact-check confirming the phrase is not Lewis’s and quoting the Marshall passage.
Integrity is doing the right thing (investigation)samyoung.co.nz

Detailed hunt for the origin, ruling out Lewis, Leopold and others.
An update: Integrity is doing the right thingsamyoung.co.nz

Follow-up tracing the older “character” variant to J.C. Watts.
Shattering the Glass Slipper (author’s page)charlesmarshall.net

Charles Marshall’s own page for the 2003 book that holds the nearest documented wording.
C.S. Lewis (Wikiquote)en.wikiquote.org

Lists the line under Misattributed as a paraphrase of Charles Marshall.

Nearest documented source

About Charles Marshall

Charles Marshall

American author, motivational speaker & comedian

Charles W. Marshall is an American motivational speaker, comedian and author who addresses corporate and civic audiences across the United States. His 2003 book Shattering the Glass Slipper contains the sentence most often cited as the source of this quotation — written in his own voice, with no reference to C.S. Lewis. Even so, his phrasing differs from the tidy popular version, and the underlying idea long predates him.

For writers & researchers

Cite this

Nearest documented source

Charles W. Marshall, Shattering the Glass Slipper (M Power Resources, 2003) — nearest documented wording; the exact popular phrasing is an anonymous paraphrase not traceable to C.S. Lewis or any single source.

This verification page

Quotle.info. “Who really said ‘Integrity is doing the right thing, even when no one is watching’?” Last verified 8 Jul 2026. https://quotle.info/who-said/integrity-is-doing-the-right-thing-even-when-no-one-is

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