The sentence "Rose is a rose is a rose is a rose." was written by Gertrude Stein as part of the 1913 poem Sacred Emily, which appeared in the 1922 book Geography and Plays. In that poem, the first "Rose" is the name of a woman. Stein later used variations on the phrase in other writings, and "A rose is a rose is a rose" is probably her most famous quote, often interpreted as "things are what they are". In Stein's view, the sentence expresses the fact that simply using the name of a thing already invokes the imagery and emotions associated with it.

The phrase was heavily promoted by Stein's friend Alice B. Toklas; for example she sold plates with the sentence going all the way around.

Versions by Gertrude Stein

"Rose is a rose is a rose is a rose." (Sacred Emily, Geography and Plays)

"Do we suppose that all she knows is that a rose is arose is a rose is a rose." (Operas and Plays)

"... she would carve on the tree Rose is a Rose is a Rose is a Rose is a Rose until it went all the way around." (The World is Round)

"A rose tree may be a rose tree may be a rosy rose tree if watered." (Alphabets and Birthdays)

"Indeed a rose is a rose makes a pretty plate...." (Stanzas in Meditation)

"When I said.
A rose is a rose is a rose is a rose.
And then later made that into a ring I made poetry and what did I do I caressed completely caressed and addressed a noun." (Lectures in America)

"Civilization begins with a rose. A rose is a rose is a rose is a rose. It continues with blooming and it fastens clearly upon excellent examples." (As Fine as Melanctha)

"Lifting belly can please me because it is an occupation I enjoy.
Rose is a rose is a rose is a rose.
In print on top." (Bee Time Vine)

"Now listen! I’m no fool. I know that in daily life we don’t go around saying “is a … is a … is a …” Yes, I’m no fool; but I think that in that line the rose is red for the first time in English poetry for a hundred years." (Four in America)

Variations by others

The sentence was parodied by Ernest Hemingway after a brief time in Paris seeking editorial suggestions for his writing: "a stone is a stein is a rock is a boulder is a pebble."

Margaret Thatcher said in 1981 "A crime is a crime is a crime", referring to the actions of members of the IRA. The phrase has been used by other speakers as well, with the intended meaning of "every law breaking should be prosecuted".