Coco Chanel? Marcel Haedrich? Apocryphal?

Question for Quote Investigator: A cookie created with a cookie cutter is easily replaceable, and this fact lowers its perceived value. This baking utensil is employed in a metaphorical insult targeting lack of originality, e.g., cookie-cutter clothes and cookie-cutter houses.
Understandably, people like to view themselves as irreplaceable. Yet, to achieve this distinction a person must be in some way unique. The famous fashion designer Coco Chanel made this point in a quotation. Would you please help me to find a citation?.
Reply from Quote Investigator: Coco Chanel (Gabrielle Bonheur Chanel) died in 1971, and in that same year, French journalist Marcel Haedrich published “Coco Chanel: Secrète” which included a section listing quotations ascribed to Chanel titled “Elle disait” (“She said”). The following were three of her remarks in the original French. Emphasis added to excerpts by QI:1
En matière de mode aussi, il n’y a que les imbéciles qui ne changent pas d’avis.
La couleur? Celle qui vous va.
Pour être irremplaçable, il faut rester différente.
The translation of Haedrich’s book into English appeared a year later under the title “Coco Chanel: Her Life, Her Secrets”. The three statements above were rendered as follows:2
That it is only fools who never change their views applies as well in fashion.
What is the best color? The one that most becomes you.
In order to be irreplaceable one must always be different.
Below are additional selected citations in chronological order.
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