Quote Investigator finds this concise wording credited to Tracy in LIFE in 1968. Related acting advice was reported from Noël Coward in 1954 and Lynn Fontanne in 1955; coinage is not settled.
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Evoking the world of Spencer Tracy — The name in the evidence. Theme: "Know Your Lines and Don't Bump Into the Furniture". 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
The source
Documented source
LIFE profile of Katharine Hepburn; related earlier acting advice
Date
1968
Know your lines and don't bump into the furniture.
Quote Investigator finds this concise wording credited to Tracy in LIFE in 1968. Related acting advice was reported from Noël Coward in 1954 and Lynn Fontanne in 1955; coinage is not settled. Read the source
The cited report dates from 1968; no public-domain claim is made for its text.
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Fact-check
Often misattributed
Fontanne’s earlier remark is longer and differently worded. The exact short sentence is documented in a later Tracy attribution, not established as his invention.
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What the evidence establishesSpencer Tracy Context
Quote Investigator finds this concise wording credited to Tracy in LIFE in 1968. Related acting advice was reported from Noël Coward in 1954 and Lynn Fontanne in 1955; coinage is not settled. Check the evidence
✓Fontanne’s earlier remark is longer and differently worded. The exact short sentence is documented in a later Tracy attribution, not established as his invention. Read the research
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Filed under
More provenance-checked quotes on the same theme, each with its reuse status.
Tracy is one of several performers linked to this practical acting advice. Earlier reports connect related formulations with Coward, Fontanne and Alfred Lunt.
For writers & researchers
Cite this
The primary source (Chicago)
LIFE profile of Katharine Hepburn; related earlier acting advice. 1968. Evidence and bibliographical details reproduced in the linked source; no independent access to an original edition is claimed unless stated.
This verification page
Quotle.info. “Who really said ‘Know Your Lines and Don't Bump Into the Furniture’?” Last verified 9 Nov 2026. https://quotle.info/who-said/know-your-lines-and-dont-bump-into-the-furniture/